Home / 1,785.90-2,461.92-1,253.17

Finding the Fourth Proportional to 1,785.90, 2,461.92 and 1,253.17

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Solution

The fourth proportional to 1,785.90, 2,461.92 and 1,253.17 is: 1,727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.90 : 2,461.92 = 1,253.17 : x
  2. Step 2: Convert to fraction form
    1,785.90/2,461.92 = 1,253.17/x
  3. Step 3: Cross multiply
    1,785.90x = 2,461.92 × 1,253.17
  4. Step 4: Simplify right side
    1,785.90x = 3,085,185.71
  5. Step 5: Solve for x
    x = 3,085,185.71/1,785.90
  6. Step 6: Final answer
    x = 1,727.53

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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.