Home / 6,439.28-9,656.82-2,055.68

Finding the Fourth Proportional to 6,439.28, 9,656.82 and 2,055.68

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Solution

The fourth proportional to 6,439.28, 9,656.82 and 2,055.68 is: 3,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.28 : 9,656.82 = 2,055.68 : x
  2. Step 2: Convert to fraction form
    6,439.28/9,656.82 = 2,055.68/x
  3. Step 3: Cross multiply
    6,439.28x = 9,656.82 × 2,055.68
  4. Step 4: Simplify right side
    6,439.28x = 19,851,331.74
  5. Step 5: Solve for x
    x = 19,851,331.74/6,439.28
  6. Step 6: Final answer
    x = 3,082.85

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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.