Home / 1,685.10-2,527.20-514.92

Finding the Fourth Proportional to 1,685.10, 2,527.20 and 514.92

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Solution

The fourth proportional to 1,685.10, 2,527.20 and 514.92 is: 772.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.10 : 2,527.20 = 514.92 : x
  2. Step 2: Convert to fraction form
    1,685.10/2,527.20 = 514.92/x
  3. Step 3: Cross multiply
    1,685.10x = 2,527.20 × 514.92
  4. Step 4: Simplify right side
    1,685.10x = 1,301,305.82
  5. Step 5: Solve for x
    x = 1,301,305.82/1,685.10
  6. Step 6: Final answer
    x = 772.24

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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.