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Finding the Fourth Proportional to 3,614.64, 5,421.96 and 1,017.24

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Solution

The fourth proportional to 3,614.64, 5,421.96 and 1,017.24 is: 1,525.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.64 : 5,421.96 = 1,017.24 : x
  2. Step 2: Convert to fraction form
    3,614.64/5,421.96 = 1,017.24/x
  3. Step 3: Cross multiply
    3,614.64x = 5,421.96 × 1,017.24
  4. Step 4: Simplify right side
    3,614.64x = 5,515,434.59
  5. Step 5: Solve for x
    x = 5,515,434.59/3,614.64
  6. Step 6: Final answer
    x = 1,525.86

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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.