Home / 7,551.12-11,330.88-3,171.60

Finding the Fourth Proportional to 7,551.12, 11,330.88 and 3,171.60

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Solution

The fourth proportional to 7,551.12, 11,330.88 and 3,171.60 is: 4,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.12 : 11,330.88 = 3,171.60 : x
  2. Step 2: Convert to fraction form
    7,551.12/11,330.88 = 3,171.60/x
  3. Step 3: Cross multiply
    7,551.12x = 11,330.88 × 3,171.60
  4. Step 4: Simplify right side
    7,551.12x = 35,937,019.01
  5. Step 5: Solve for x
    x = 35,937,019.01/7,551.12
  6. Step 6: Final answer
    x = 4,759.16

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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.