Home / 2,478.76-3,711.96-1,246.74

Finding the Fourth Proportional to 2,478.76, 3,711.96 and 1,246.74

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Solution

The fourth proportional to 2,478.76, 3,711.96 and 1,246.74 is: 1,867.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.76 : 3,711.96 = 1,246.74 : x
  2. Step 2: Convert to fraction form
    2,478.76/3,711.96 = 1,246.74/x
  3. Step 3: Cross multiply
    2,478.76x = 3,711.96 × 1,246.74
  4. Step 4: Simplify right side
    2,478.76x = 4,627,849.01
  5. Step 5: Solve for x
    x = 4,627,849.01/2,478.76
  6. Step 6: Final answer
    x = 1,867.00

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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.