Home / 1,560.13-2,340.80-739.09

Finding the Fourth Proportional to 1,560.13, 2,340.80 and 739.09

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Solution

The fourth proportional to 1,560.13, 2,340.80 and 739.09 is: 1,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.13 : 2,340.80 = 739.09 : x
  2. Step 2: Convert to fraction form
    1,560.13/2,340.80 = 739.09/x
  3. Step 3: Cross multiply
    1,560.13x = 2,340.80 × 739.09
  4. Step 4: Simplify right side
    1,560.13x = 1,730,063.87
  5. Step 5: Solve for x
    x = 1,730,063.87/1,560.13
  6. Step 6: Final answer
    x = 1,108.92

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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.