Home / 5,589.11-8,378.45-1,888.75

Finding the Fourth Proportional to 5,589.11, 8,378.45 and 1,888.75

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Solution

The fourth proportional to 5,589.11, 8,378.45 and 1,888.75 is: 2,831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.11 : 8,378.45 = 1,888.75 : x
  2. Step 2: Convert to fraction form
    5,589.11/8,378.45 = 1,888.75/x
  3. Step 3: Cross multiply
    5,589.11x = 8,378.45 × 1,888.75
  4. Step 4: Simplify right side
    5,589.11x = 15,824,805.55
  5. Step 5: Solve for x
    x = 15,824,805.55/5,589.11
  6. Step 6: Final answer
    x = 2,831.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.