Home / 3,115.84-4,679.52-2,470.72

Finding the Fourth Proportional to 3,115.84, 4,679.52 and 2,470.72

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Solution

The fourth proportional to 3,115.84, 4,679.52 and 2,470.72 is: 3,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.84 : 4,679.52 = 2,470.72 : x
  2. Step 2: Convert to fraction form
    3,115.84/4,679.52 = 2,470.72/x
  3. Step 3: Cross multiply
    3,115.84x = 4,679.52 × 2,470.72
  4. Step 4: Simplify right side
    3,115.84x = 11,561,783.65
  5. Step 5: Solve for x
    x = 11,561,783.65/3,115.84
  6. Step 6: Final answer
    x = 3,710.65

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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.