Home / 7,125.16-9,831.30-4,141

Finding the Fourth Proportional to 7,125.16, 9,831.30 and 4,141

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Solution

The fourth proportional to 7,125.16, 9,831.30 and 4,141 is: 5,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.16 : 9,831.30 = 4,141 : x
  2. Step 2: Convert to fraction form
    7,125.16/9,831.30 = 4,141/x
  3. Step 3: Cross multiply
    7,125.16x = 9,831.30 × 4,141
  4. Step 4: Simplify right side
    7,125.16x = 40,711,413.30
  5. Step 5: Solve for x
    x = 40,711,413.30/7,125.16
  6. Step 6: Final answer
    x = 5,713.75

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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.