Home / 1,427.24-2,142.08-562.16

Finding the Fourth Proportional to 1,427.24, 2,142.08 and 562.16

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Solution

The fourth proportional to 1,427.24, 2,142.08 and 562.16 is: 843.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.24 : 2,142.08 = 562.16 : x
  2. Step 2: Convert to fraction form
    1,427.24/2,142.08 = 562.16/x
  3. Step 3: Cross multiply
    1,427.24x = 2,142.08 × 562.16
  4. Step 4: Simplify right side
    1,427.24x = 1,204,191.69
  5. Step 5: Solve for x
    x = 1,204,191.69/1,427.24
  6. Step 6: Final answer
    x = 843.72

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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.