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Finding the Fourth Proportional to 5,711.79, 8,533.12 and 5,679.39

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Solution

The fourth proportional to 5,711.79, 8,533.12 and 5,679.39 is: 8,484.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.79 : 8,533.12 = 5,679.39 : x
  2. Step 2: Convert to fraction form
    5,711.79/8,533.12 = 5,679.39/x
  3. Step 3: Cross multiply
    5,711.79x = 8,533.12 × 5,679.39
  4. Step 4: Simplify right side
    5,711.79x = 48,462,902.20
  5. Step 5: Solve for x
    x = 48,462,902.20/5,711.79
  6. Step 6: Final answer
    x = 8,484.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.