Home / 1,975.86-2,726.84-1,136.77

Finding the Fourth Proportional to 1,975.86, 2,726.84 and 1,136.77

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Solution

The fourth proportional to 1,975.86, 2,726.84 and 1,136.77 is: 1,568.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.86 : 2,726.84 = 1,136.77 : x
  2. Step 2: Convert to fraction form
    1,975.86/2,726.84 = 1,136.77/x
  3. Step 3: Cross multiply
    1,975.86x = 2,726.84 × 1,136.77
  4. Step 4: Simplify right side
    1,975.86x = 3,099,785.93
  5. Step 5: Solve for x
    x = 3,099,785.93/1,975.86
  6. Step 6: Final answer
    x = 1,568.83

Related Problems

Find fourth proportional to 987.93, 1,363.42 and 568.38
Half scale
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Double scale
Find fourth proportional to 1,976.86, 2,728.22 and 1,137.77
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.