Home / 1,426.44-2,140.38-560.76

Finding the Fourth Proportional to 1,426.44, 2,140.38 and 560.76

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Solution

The fourth proportional to 1,426.44, 2,140.38 and 560.76 is: 841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.44 : 2,140.38 = 560.76 : x
  2. Step 2: Convert to fraction form
    1,426.44/2,140.38 = 560.76/x
  3. Step 3: Cross multiply
    1,426.44x = 2,140.38 × 560.76
  4. Step 4: Simplify right side
    1,426.44x = 1,200,239.49
  5. Step 5: Solve for x
    x = 1,200,239.49/1,426.44
  6. Step 6: Final answer
    x = 841.42

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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.