Home / 1,975.98-2,726.64-1,136.69

Finding the Fourth Proportional to 1,975.98, 2,726.64 and 1,136.69

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Solution

The fourth proportional to 1,975.98, 2,726.64 and 1,136.69 is: 1,568.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.98 : 2,726.64 = 1,136.69 : x
  2. Step 2: Convert to fraction form
    1,975.98/2,726.64 = 1,136.69/x
  3. Step 3: Cross multiply
    1,975.98x = 2,726.64 × 1,136.69
  4. Step 4: Simplify right side
    1,975.98x = 3,099,330.79
  5. Step 5: Solve for x
    x = 3,099,330.79/1,975.98
  6. Step 6: Final answer
    x = 1,568.50

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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.