Home / 5,512.91-7,608.47-3,155.81

Finding the Fourth Proportional to 5,512.91, 7,608.47 and 3,155.81

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Solution

The fourth proportional to 5,512.91, 7,608.47 and 3,155.81 is: 4,355.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,512.91 : 7,608.47 = 3,155.81 : x
  2. Step 2: Convert to fraction form
    5,512.91/7,608.47 = 3,155.81/x
  3. Step 3: Cross multiply
    5,512.91x = 7,608.47 × 3,155.81
  4. Step 4: Simplify right side
    5,512.91x = 24,010,831.89
  5. Step 5: Solve for x
    x = 24,010,831.89/5,512.91
  6. Step 6: Final answer
    x = 4,355.39

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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.