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Finding the Fourth Proportional to 5,000.32, 6,900.10 and 2,762.20

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Solution

The fourth proportional to 5,000.32, 6,900.10 and 2,762.20 is: 3,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.32 : 6,900.10 = 2,762.20 : x
  2. Step 2: Convert to fraction form
    5,000.32/6,900.10 = 2,762.20/x
  3. Step 3: Cross multiply
    5,000.32x = 6,900.10 × 2,762.20
  4. Step 4: Simplify right side
    5,000.32x = 19,059,456.22
  5. Step 5: Solve for x
    x = 19,059,456.22/5,000.32
  6. Step 6: Final answer
    x = 3,811.65

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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.