Home / 2,470.82-3,708.06-1,989.68

Finding the Fourth Proportional to 2,470.82, 3,708.06 and 1,989.68

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Solution

The fourth proportional to 2,470.82, 3,708.06 and 1,989.68 is: 2,985.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.82 : 3,708.06 = 1,989.68 : x
  2. Step 2: Convert to fraction form
    2,470.82/3,708.06 = 1,989.68/x
  3. Step 3: Cross multiply
    2,470.82x = 3,708.06 × 1,989.68
  4. Step 4: Simplify right side
    2,470.82x = 7,377,862.09
  5. Step 5: Solve for x
    x = 7,377,862.09/2,470.82
  6. Step 6: Final answer
    x = 2,985.99

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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.