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Finding the Fourth Proportional to 4,687.64, 7,031.96 and 1,224.92

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Solution

The fourth proportional to 4,687.64, 7,031.96 and 1,224.92 is: 1,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.64 : 7,031.96 = 1,224.92 : x
  2. Step 2: Convert to fraction form
    4,687.64/7,031.96 = 1,224.92/x
  3. Step 3: Cross multiply
    4,687.64x = 7,031.96 × 1,224.92
  4. Step 4: Simplify right side
    4,687.64x = 8,613,588.44
  5. Step 5: Solve for x
    x = 8,613,588.44/4,687.64
  6. Step 6: Final answer
    x = 1,837.51

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1.5x scale

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.