Home / 4,778.52-7,159.36-3,318.60

Finding the Fourth Proportional to 4,778.52, 7,159.36 and 3,318.60

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Solution

The fourth proportional to 4,778.52, 7,159.36 and 3,318.60 is: 4,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.52 : 7,159.36 = 3,318.60 : x
  2. Step 2: Convert to fraction form
    4,778.52/7,159.36 = 3,318.60/x
  3. Step 3: Cross multiply
    4,778.52x = 7,159.36 × 3,318.60
  4. Step 4: Simplify right side
    4,778.52x = 23,759,052.10
  5. Step 5: Solve for x
    x = 23,759,052.10/4,778.52
  6. Step 6: Final answer
    x = 4,972.05

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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.