Home / 1,713.20-2,569.51-480.61

Finding the Fourth Proportional to 1,713.20, 2,569.51 and 480.61

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Solution

The fourth proportional to 1,713.20, 2,569.51 and 480.61 is: 720.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.20 : 2,569.51 = 480.61 : x
  2. Step 2: Convert to fraction form
    1,713.20/2,569.51 = 480.61/x
  3. Step 3: Cross multiply
    1,713.20x = 2,569.51 × 480.61
  4. Step 4: Simplify right side
    1,713.20x = 1,234,936.01
  5. Step 5: Solve for x
    x = 1,234,936.01/1,713.20
  6. Step 6: Final answer
    x = 720.84

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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.