Home / 2,515.62-3,470.13-1,582.50

Finding the Fourth Proportional to 2,515.62, 3,470.13 and 1,582.50

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Solution

The fourth proportional to 2,515.62, 3,470.13 and 1,582.50 is: 2,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.62 : 3,470.13 = 1,582.50 : x
  2. Step 2: Convert to fraction form
    2,515.62/3,470.13 = 1,582.50/x
  3. Step 3: Cross multiply
    2,515.62x = 3,470.13 × 1,582.50
  4. Step 4: Simplify right side
    2,515.62x = 5,491,480.73
  5. Step 5: Solve for x
    x = 5,491,480.73/2,515.62
  6. Step 6: Final answer
    x = 2,182.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.