Home / 5,325.45-7,988.17-4,178.49

Finding the Fourth Proportional to 5,325.45, 7,988.17 and 4,178.49

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Solution

The fourth proportional to 5,325.45, 7,988.17 and 4,178.49 is: 6,267.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.45 : 7,988.17 = 4,178.49 : x
  2. Step 2: Convert to fraction form
    5,325.45/7,988.17 = 4,178.49/x
  3. Step 3: Cross multiply
    5,325.45x = 7,988.17 × 4,178.49
  4. Step 4: Simplify right side
    5,325.45x = 33,378,488.46
  5. Step 5: Solve for x
    x = 33,378,488.46/5,325.45
  6. Step 6: Final answer
    x = 6,267.73

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Half scale
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Double scale
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Similar ratio
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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.