Home / 1,002.24-1,383.28-609.20

Finding the Fourth Proportional to 1,002.24, 1,383.28 and 609.20

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Solution

The fourth proportional to 1,002.24, 1,383.28 and 609.20 is: 840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002.24 : 1,383.28 = 609.20 : x
  2. Step 2: Convert to fraction form
    1,002.24/1,383.28 = 609.20/x
  3. Step 3: Cross multiply
    1,002.24x = 1,383.28 × 609.20
  4. Step 4: Simplify right side
    1,002.24x = 842,694.18
  5. Step 5: Solve for x
    x = 842,694.18/1,002.24
  6. Step 6: Final answer
    x = 840.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.