Home / 5,378.50-7,422.64-3,582.86

Finding the Fourth Proportional to 5,378.50, 7,422.64 and 3,582.86

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Solution

The fourth proportional to 5,378.50, 7,422.64 and 3,582.86 is: 4,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.50 : 7,422.64 = 3,582.86 : x
  2. Step 2: Convert to fraction form
    5,378.50/7,422.64 = 3,582.86/x
  3. Step 3: Cross multiply
    5,378.50x = 7,422.64 × 3,582.86
  4. Step 4: Simplify right side
    5,378.50x = 26,594,279.95
  5. Step 5: Solve for x
    x = 26,594,279.95/5,378.50
  6. Step 6: Final answer
    x = 4,944.55

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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.