Home / 2,417.28-3,625.60-686.08

Finding the Fourth Proportional to 2,417.28, 3,625.60 and 686.08

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Solution

The fourth proportional to 2,417.28, 3,625.60 and 686.08 is: 1,029.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.28 : 3,625.60 = 686.08 : x
  2. Step 2: Convert to fraction form
    2,417.28/3,625.60 = 686.08/x
  3. Step 3: Cross multiply
    2,417.28x = 3,625.60 × 686.08
  4. Step 4: Simplify right side
    2,417.28x = 2,487,451.65
  5. Step 5: Solve for x
    x = 2,487,451.65/2,417.28
  6. Step 6: Final answer
    x = 1,029.03

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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.