Home / 1,562.90-2,344.36-408.66

Finding the Fourth Proportional to 1,562.90, 2,344.36 and 408.66

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Solution

The fourth proportional to 1,562.90, 2,344.36 and 408.66 is: 612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.90 : 2,344.36 = 408.66 : x
  2. Step 2: Convert to fraction form
    1,562.90/2,344.36 = 408.66/x
  3. Step 3: Cross multiply
    1,562.90x = 2,344.36 × 408.66
  4. Step 4: Simplify right side
    1,562.90x = 958,046.16
  5. Step 5: Solve for x
    x = 958,046.16/1,562.90
  6. Step 6: Final answer
    x = 612.99

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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.