Home / 1,713.25-2,569.29-1,128.23

Finding the Fourth Proportional to 1,713.25, 2,569.29 and 1,128.23

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Solution

The fourth proportional to 1,713.25, 2,569.29 and 1,128.23 is: 1,691.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.25 : 2,569.29 = 1,128.23 : x
  2. Step 2: Convert to fraction form
    1,713.25/2,569.29 = 1,128.23/x
  3. Step 3: Cross multiply
    1,713.25x = 2,569.29 × 1,128.23
  4. Step 4: Simplify right side
    1,713.25x = 2,898,742.61
  5. Step 5: Solve for x
    x = 2,898,742.61/1,713.25
  6. Step 6: Final answer
    x = 1,691.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.