Home / 1,340.20-2,010.64-560.06

Finding the Fourth Proportional to 1,340.20, 2,010.64 and 560.06

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Solution

The fourth proportional to 1,340.20, 2,010.64 and 560.06 is: 840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.20 : 2,010.64 = 560.06 : x
  2. Step 2: Convert to fraction form
    1,340.20/2,010.64 = 560.06/x
  3. Step 3: Cross multiply
    1,340.20x = 2,010.64 × 560.06
  4. Step 4: Simplify right side
    1,340.20x = 1,126,079.04
  5. Step 5: Solve for x
    x = 1,126,079.04/1,340.20
  6. Step 6: Final answer
    x = 840.23

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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.