Home / 5,866.60-8,087.70-5,166.76

Finding the Fourth Proportional to 5,866.60, 8,087.70 and 5,166.76

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Solution

The fourth proportional to 5,866.60, 8,087.70 and 5,166.76 is: 7,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,866.60 : 8,087.70 = 5,166.76 : x
  2. Step 2: Convert to fraction form
    5,866.60/8,087.70 = 5,166.76/x
  3. Step 3: Cross multiply
    5,866.60x = 8,087.70 × 5,166.76
  4. Step 4: Simplify right side
    5,866.60x = 41,787,204.85
  5. Step 5: Solve for x
    x = 41,787,204.85/5,866.60
  6. Step 6: Final answer
    x = 7,122.90

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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.