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Finding the Fourth Proportional to 5,666.13, 7,819.81 and 3,276.20

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Solution

The fourth proportional to 5,666.13, 7,819.81 and 3,276.20 is: 4,521.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.13 : 7,819.81 = 3,276.20 : x
  2. Step 2: Convert to fraction form
    5,666.13/7,819.81 = 3,276.20/x
  3. Step 3: Cross multiply
    5,666.13x = 7,819.81 × 3,276.20
  4. Step 4: Simplify right side
    5,666.13x = 25,619,261.52
  5. Step 5: Solve for x
    x = 25,619,261.52/5,666.13
  6. Step 6: Final answer
    x = 4,521.47

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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.