Home / 5,020.38-6,931.53-3,134.84

Finding the Fourth Proportional to 5,020.38, 6,931.53 and 3,134.84

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Solution

The fourth proportional to 5,020.38, 6,931.53 and 3,134.84 is: 4,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.38 : 6,931.53 = 3,134.84 : x
  2. Step 2: Convert to fraction form
    5,020.38/6,931.53 = 3,134.84/x
  3. Step 3: Cross multiply
    5,020.38x = 6,931.53 × 3,134.84
  4. Step 4: Simplify right side
    5,020.38x = 21,729,202.85
  5. Step 5: Solve for x
    x = 21,729,202.85/5,020.38
  6. Step 6: Final answer
    x = 4,328.20

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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.