Home / 3,140.93-4,711.62-1,061.15

Finding the Fourth Proportional to 3,140.93, 4,711.62 and 1,061.15

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Solution

The fourth proportional to 3,140.93, 4,711.62 and 1,061.15 is: 1,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.93 : 4,711.62 = 1,061.15 : x
  2. Step 2: Convert to fraction form
    3,140.93/4,711.62 = 1,061.15/x
  3. Step 3: Cross multiply
    3,140.93x = 4,711.62 × 1,061.15
  4. Step 4: Simplify right side
    3,140.93x = 4,999,736.52
  5. Step 5: Solve for x
    x = 4,999,736.52/3,140.93
  6. Step 6: Final answer
    x = 1,591.80

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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.