Home / 1,560.08-2,339.56-519.90

Finding the Fourth Proportional to 1,560.08, 2,339.56 and 519.90

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Solution

The fourth proportional to 1,560.08, 2,339.56 and 519.90 is: 779.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.08 : 2,339.56 = 519.90 : x
  2. Step 2: Convert to fraction form
    1,560.08/2,339.56 = 519.90/x
  3. Step 3: Cross multiply
    1,560.08x = 2,339.56 × 519.90
  4. Step 4: Simplify right side
    1,560.08x = 1,216,337.24
  5. Step 5: Solve for x
    x = 1,216,337.24/1,560.08
  6. Step 6: Final answer
    x = 779.66

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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.