Home / 2,831.31-4,248.54-1,077.48

Finding the Fourth Proportional to 2,831.31, 4,248.54 and 1,077.48

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Solution

The fourth proportional to 2,831.31, 4,248.54 and 1,077.48 is: 1,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.31 : 4,248.54 = 1,077.48 : x
  2. Step 2: Convert to fraction form
    2,831.31/4,248.54 = 1,077.48/x
  3. Step 3: Cross multiply
    2,831.31x = 4,248.54 × 1,077.48
  4. Step 4: Simplify right side
    2,831.31x = 4,577,716.88
  5. Step 5: Solve for x
    x = 4,577,716.88/2,831.31
  6. Step 6: Final answer
    x = 1,616.82

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1.5x scale

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.