Home / 5,675.08-7,831.76-3,157.36

Finding the Fourth Proportional to 5,675.08, 7,831.76 and 3,157.36

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Solution

The fourth proportional to 5,675.08, 7,831.76 and 3,157.36 is: 4,357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.08 : 7,831.76 = 3,157.36 : x
  2. Step 2: Convert to fraction form
    5,675.08/7,831.76 = 3,157.36/x
  3. Step 3: Cross multiply
    5,675.08x = 7,831.76 × 3,157.36
  4. Step 4: Simplify right side
    5,675.08x = 24,727,685.75
  5. Step 5: Solve for x
    x = 24,727,685.75/5,675.08
  6. Step 6: Final answer
    x = 4,357.24

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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.