Home / 2,447.09-3,376.71-1,398.95

Finding the Fourth Proportional to 2,447.09, 3,376.71 and 1,398.95

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Solution

The fourth proportional to 2,447.09, 3,376.71 and 1,398.95 is: 1,930.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.09 : 3,376.71 = 1,398.95 : x
  2. Step 2: Convert to fraction form
    2,447.09/3,376.71 = 1,398.95/x
  3. Step 3: Cross multiply
    2,447.09x = 3,376.71 × 1,398.95
  4. Step 4: Simplify right side
    2,447.09x = 4,723,831.57
  5. Step 5: Solve for x
    x = 4,723,831.57/2,447.09
  6. Step 6: Final answer
    x = 1,930.39

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1.5x scale

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.