Home / 1,442.48-2,162.72-517.57

Finding the Fourth Proportional to 1,442.48, 2,162.72 and 517.57

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Solution

The fourth proportional to 1,442.48, 2,162.72 and 517.57 is: 776.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.48 : 2,162.72 = 517.57 : x
  2. Step 2: Convert to fraction form
    1,442.48/2,162.72 = 517.57/x
  3. Step 3: Cross multiply
    1,442.48x = 2,162.72 × 517.57
  4. Step 4: Simplify right side
    1,442.48x = 1,119,354.88
  5. Step 5: Solve for x
    x = 1,119,354.88/1,442.48
  6. Step 6: Final answer
    x = 776.00

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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.