Home / 3,831.12-5,280.95-3,203.72

Finding the Fourth Proportional to 3,831.12, 5,280.95 and 3,203.72

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Solution

The fourth proportional to 3,831.12, 5,280.95 and 3,203.72 is: 4,416.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.12 : 5,280.95 = 3,203.72 : x
  2. Step 2: Convert to fraction form
    3,831.12/5,280.95 = 3,203.72/x
  3. Step 3: Cross multiply
    3,831.12x = 5,280.95 × 3,203.72
  4. Step 4: Simplify right side
    3,831.12x = 16,918,685.13
  5. Step 5: Solve for x
    x = 16,918,685.13/3,831.12
  6. Step 6: Final answer
    x = 4,416.12

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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.