Home / 5,675.52-7,831.68-3,191.36

Finding the Fourth Proportional to 5,675.52, 7,831.68 and 3,191.36

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Solution

The fourth proportional to 5,675.52, 7,831.68 and 3,191.36 is: 4,403.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.52 : 7,831.68 = 3,191.36 : x
  2. Step 2: Convert to fraction form
    5,675.52/7,831.68 = 3,191.36/x
  3. Step 3: Cross multiply
    5,675.52x = 7,831.68 × 3,191.36
  4. Step 4: Simplify right side
    5,675.52x = 24,993,710.28
  5. Step 5: Solve for x
    x = 24,993,710.28/5,675.52
  6. Step 6: Final answer
    x = 4,403.77

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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.