Home / 5,675.18-7,831.62-3,157.25

Finding the Fourth Proportional to 5,675.18, 7,831.62 and 3,157.25

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Solution

The fourth proportional to 5,675.18, 7,831.62 and 3,157.25 is: 4,356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.18 : 7,831.62 = 3,157.25 : x
  2. Step 2: Convert to fraction form
    5,675.18/7,831.62 = 3,157.25/x
  3. Step 3: Cross multiply
    5,675.18x = 7,831.62 × 3,157.25
  4. Step 4: Simplify right side
    5,675.18x = 24,726,343.09
  5. Step 5: Solve for x
    x = 24,726,343.09/5,675.18
  6. Step 6: Final answer
    x = 4,356.93

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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.