Home / 4,888.50-6,747.18-3,119.70

Finding the Fourth Proportional to 4,888.50, 6,747.18 and 3,119.70

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Solution

The fourth proportional to 4,888.50, 6,747.18 and 3,119.70 is: 4,305.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.50 : 6,747.18 = 3,119.70 : x
  2. Step 2: Convert to fraction form
    4,888.50/6,747.18 = 3,119.70/x
  3. Step 3: Cross multiply
    4,888.50x = 6,747.18 × 3,119.70
  4. Step 4: Simplify right side
    4,888.50x = 21,049,177.45
  5. Step 5: Solve for x
    x = 21,049,177.45/4,888.50
  6. Step 6: Final answer
    x = 4,305.86

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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.