Home / 1,975.87-2,726.33-1,136.61

Finding the Fourth Proportional to 1,975.87, 2,726.33 and 1,136.61

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Solution

The fourth proportional to 1,975.87, 2,726.33 and 1,136.61 is: 1,568.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.87 : 2,726.33 = 1,136.61 : x
  2. Step 2: Convert to fraction form
    1,975.87/2,726.33 = 1,136.61/x
  3. Step 3: Cross multiply
    1,975.87x = 2,726.33 × 1,136.61
  4. Step 4: Simplify right side
    1,975.87x = 3,098,770.18
  5. Step 5: Solve for x
    x = 3,098,770.18/1,975.87
  6. Step 6: Final answer
    x = 1,568.31

Related Problems

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Half scale
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Double scale
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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.