Home / 4,691.28-7,069.16-3,887.60

Finding the Fourth Proportional to 4,691.28, 7,069.16 and 3,887.60

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Solution

The fourth proportional to 4,691.28, 7,069.16 and 3,887.60 is: 5,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691.28 : 7,069.16 = 3,887.60 : x
  2. Step 2: Convert to fraction form
    4,691.28/7,069.16 = 3,887.60/x
  3. Step 3: Cross multiply
    4,691.28x = 7,069.16 × 3,887.60
  4. Step 4: Simplify right side
    4,691.28x = 27,482,066.42
  5. Step 5: Solve for x
    x = 27,482,066.42/4,691.28
  6. Step 6: Final answer
    x = 5,858.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.