Home / 5,084.60-7,631.70-3,140.60

Finding the Fourth Proportional to 5,084.60, 7,631.70 and 3,140.60

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Solution

The fourth proportional to 5,084.60, 7,631.70 and 3,140.60 is: 4,713.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,084.60 : 7,631.70 = 3,140.60 : x
  2. Step 2: Convert to fraction form
    5,084.60/7,631.70 = 3,140.60/x
  3. Step 3: Cross multiply
    5,084.60x = 7,631.70 × 3,140.60
  4. Step 4: Simplify right side
    5,084.60x = 23,968,117.02
  5. Step 5: Solve for x
    x = 23,968,117.02/5,084.60
  6. Step 6: Final answer
    x = 4,713.86

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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.