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Finding the Fourth Proportional to 5,223.32, 7,207.18 and 2,985.90

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Solution

The fourth proportional to 5,223.32, 7,207.18 and 2,985.90 is: 4,119.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.32 : 7,207.18 = 2,985.90 : x
  2. Step 2: Convert to fraction form
    5,223.32/7,207.18 = 2,985.90/x
  3. Step 3: Cross multiply
    5,223.32x = 7,207.18 × 2,985.90
  4. Step 4: Simplify right side
    5,223.32x = 21,519,884.27
  5. Step 5: Solve for x
    x = 21,519,884.27/5,223.32
  6. Step 6: Final answer
    x = 4,119.96

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1.5x scale

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.