Home / 5,438.24-8,160.60-1,975.76

Finding the Fourth Proportional to 5,438.24, 8,160.60 and 1,975.76

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Solution

The fourth proportional to 5,438.24, 8,160.60 and 1,975.76 is: 2,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.24 : 8,160.60 = 1,975.76 : x
  2. Step 2: Convert to fraction form
    5,438.24/8,160.60 = 1,975.76/x
  3. Step 3: Cross multiply
    5,438.24x = 8,160.60 × 1,975.76
  4. Step 4: Simplify right side
    5,438.24x = 16,123,373.15
  5. Step 5: Solve for x
    x = 16,123,373.15/5,438.24
  6. Step 6: Final answer
    x = 2,964.82

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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.