Home / 5,675.33-7,831.28-3,156.81

Finding the Fourth Proportional to 5,675.33, 7,831.28 and 3,156.81

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Solution

The fourth proportional to 5,675.33, 7,831.28 and 3,156.81 is: 4,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.33 : 7,831.28 = 3,156.81 : x
  2. Step 2: Convert to fraction form
    5,675.33/7,831.28 = 3,156.81/x
  3. Step 3: Cross multiply
    5,675.33x = 7,831.28 × 3,156.81
  4. Step 4: Simplify right side
    5,675.33x = 24,721,847.23
  5. Step 5: Solve for x
    x = 24,721,847.23/5,675.33
  6. Step 6: Final answer
    x = 4,356.02

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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.