Home / 5,475.80-7,560.78-4,214.90

Finding the Fourth Proportional to 5,475.80, 7,560.78 and 4,214.90

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Solution

The fourth proportional to 5,475.80, 7,560.78 and 4,214.90 is: 5,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.80 : 7,560.78 = 4,214.90 : x
  2. Step 2: Convert to fraction form
    5,475.80/7,560.78 = 4,214.90/x
  3. Step 3: Cross multiply
    5,475.80x = 7,560.78 × 4,214.90
  4. Step 4: Simplify right side
    5,475.80x = 31,867,931.62
  5. Step 5: Solve for x
    x = 31,867,931.62/5,475.80
  6. Step 6: Final answer
    x = 5,819.78

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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.