Home / 4,687.64-7,031.32-1,224.90

Finding the Fourth Proportional to 4,687.64, 7,031.32 and 1,224.90

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Solution

The fourth proportional to 4,687.64, 7,031.32 and 1,224.90 is: 1,837.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.64 : 7,031.32 = 1,224.90 : x
  2. Step 2: Convert to fraction form
    4,687.64/7,031.32 = 1,224.90/x
  3. Step 3: Cross multiply
    4,687.64x = 7,031.32 × 1,224.90
  4. Step 4: Simplify right side
    4,687.64x = 8,612,663.87
  5. Step 5: Solve for x
    x = 8,612,663.87/4,687.64
  6. Step 6: Final answer
    x = 1,837.31

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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.