Home / 5,129.75-7,711.83-4,047.18

Finding the Fourth Proportional to 5,129.75, 7,711.83 and 4,047.18

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Solution

The fourth proportional to 5,129.75, 7,711.83 and 4,047.18 is: 6,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.75 : 7,711.83 = 4,047.18 : x
  2. Step 2: Convert to fraction form
    5,129.75/7,711.83 = 4,047.18/x
  3. Step 3: Cross multiply
    5,129.75x = 7,711.83 × 4,047.18
  4. Step 4: Simplify right side
    5,129.75x = 31,211,164.14
  5. Step 5: Solve for x
    x = 31,211,164.14/5,129.75
  6. Step 6: Final answer
    x = 6,084.35

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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.