Home / 7,020.32-9,687.66-3,876.28

Finding the Fourth Proportional to 7,020.32, 9,687.66 and 3,876.28

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Solution

The fourth proportional to 7,020.32, 9,687.66 and 3,876.28 is: 5,349.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.32 : 9,687.66 = 3,876.28 : x
  2. Step 2: Convert to fraction form
    7,020.32/9,687.66 = 3,876.28/x
  3. Step 3: Cross multiply
    7,020.32x = 9,687.66 × 3,876.28
  4. Step 4: Simplify right side
    7,020.32x = 37,552,082.70
  5. Step 5: Solve for x
    x = 37,552,082.70/7,020.32
  6. Step 6: Final answer
    x = 5,349.06

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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.