Home / 3,498.80-4,831.26-3,125.12

Finding the Fourth Proportional to 3,498.80, 4,831.26 and 3,125.12

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Solution

The fourth proportional to 3,498.80, 4,831.26 and 3,125.12 is: 4,315.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,498.80 : 4,831.26 = 3,125.12 : x
  2. Step 2: Convert to fraction form
    3,498.80/4,831.26 = 3,125.12/x
  3. Step 3: Cross multiply
    3,498.80x = 4,831.26 × 3,125.12
  4. Step 4: Simplify right side
    3,498.80x = 15,098,267.25
  5. Step 5: Solve for x
    x = 15,098,267.25/3,498.80
  6. Step 6: Final answer
    x = 4,315.27

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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.