Home / 2,417.52-3,626.19-686.13

Finding the Fourth Proportional to 2,417.52, 3,626.19 and 686.13

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Solution

The fourth proportional to 2,417.52, 3,626.19 and 686.13 is: 1,029.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.52 : 3,626.19 = 686.13 : x
  2. Step 2: Convert to fraction form
    2,417.52/3,626.19 = 686.13/x
  3. Step 3: Cross multiply
    2,417.52x = 3,626.19 × 686.13
  4. Step 4: Simplify right side
    2,417.52x = 2,488,037.74
  5. Step 5: Solve for x
    x = 2,488,037.74/2,417.52
  6. Step 6: Final answer
    x = 1,029.17

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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.