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Finding the Fourth Proportional to 3,750.30, 5,613.30 and 3,312.90

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Solution

The fourth proportional to 3,750.30, 5,613.30 and 3,312.90 is: 4,958.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.30 : 5,613.30 = 3,312.90 : x
  2. Step 2: Convert to fraction form
    3,750.30/5,613.30 = 3,312.90/x
  3. Step 3: Cross multiply
    3,750.30x = 5,613.30 × 3,312.90
  4. Step 4: Simplify right side
    3,750.30x = 18,596,301.57
  5. Step 5: Solve for x
    x = 18,596,301.57/3,750.30
  6. Step 6: Final answer
    x = 4,958.62

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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.