Home / 1,426.57-2,140.16-560.88

Finding the Fourth Proportional to 1,426.57, 2,140.16 and 560.88

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Solution

The fourth proportional to 1,426.57, 2,140.16 and 560.88 is: 841.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.57 : 2,140.16 = 560.88 : x
  2. Step 2: Convert to fraction form
    1,426.57/2,140.16 = 560.88/x
  3. Step 3: Cross multiply
    1,426.57x = 2,140.16 × 560.88
  4. Step 4: Simplify right side
    1,426.57x = 1,200,372.94
  5. Step 5: Solve for x
    x = 1,200,372.94/1,426.57
  6. Step 6: Final answer
    x = 841.44

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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.