Home / 5,319.08-7,983.23-5,306.78

Finding the Fourth Proportional to 5,319.08, 7,983.23 and 5,306.78

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Solution

The fourth proportional to 5,319.08, 7,983.23 and 5,306.78 is: 7,964.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.08 : 7,983.23 = 5,306.78 : x
  2. Step 2: Convert to fraction form
    5,319.08/7,983.23 = 5,306.78/x
  3. Step 3: Cross multiply
    5,319.08x = 7,983.23 × 5,306.78
  4. Step 4: Simplify right side
    5,319.08x = 42,365,178.85
  5. Step 5: Solve for x
    x = 42,365,178.85/5,319.08
  6. Step 6: Final answer
    x = 7,964.76

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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.