Home / 1,340.82-2,011.52-560.86

Finding the Fourth Proportional to 1,340.82, 2,011.52 and 560.86

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Solution

The fourth proportional to 1,340.82, 2,011.52 and 560.86 is: 841.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.82 : 2,011.52 = 560.86 : x
  2. Step 2: Convert to fraction form
    1,340.82/2,011.52 = 560.86/x
  3. Step 3: Cross multiply
    1,340.82x = 2,011.52 × 560.86
  4. Step 4: Simplify right side
    1,340.82x = 1,128,177.48
  5. Step 5: Solve for x
    x = 1,128,177.48/1,340.82
  6. Step 6: Final answer
    x = 841.41

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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.