Home / 1,737.28-2,397.27-991.40

Finding the Fourth Proportional to 1,737.28, 2,397.27 and 991.40

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Solution

The fourth proportional to 1,737.28, 2,397.27 and 991.40 is: 1,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737.28 : 2,397.27 = 991.40 : x
  2. Step 2: Convert to fraction form
    1,737.28/2,397.27 = 991.40/x
  3. Step 3: Cross multiply
    1,737.28x = 2,397.27 × 991.40
  4. Step 4: Simplify right side
    1,737.28x = 2,376,653.48
  5. Step 5: Solve for x
    x = 2,376,653.48/1,737.28
  6. Step 6: Final answer
    x = 1,368.03

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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.