Home / 7,125.05-9,831.75-4,100.06

Finding the Fourth Proportional to 7,125.05, 9,831.75 and 4,100.06

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Solution

The fourth proportional to 7,125.05, 9,831.75 and 4,100.06 is: 5,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.05 : 9,831.75 = 4,100.06 : x
  2. Step 2: Convert to fraction form
    7,125.05/9,831.75 = 4,100.06/x
  3. Step 3: Cross multiply
    7,125.05x = 9,831.75 × 4,100.06
  4. Step 4: Simplify right side
    7,125.05x = 40,310,764.91
  5. Step 5: Solve for x
    x = 40,310,764.91/7,125.05
  6. Step 6: Final answer
    x = 5,657.61

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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.