Home / 2,378.15-3,567.38-818.22

Finding the Fourth Proportional to 2,378.15, 3,567.38 and 818.22

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Solution

The fourth proportional to 2,378.15, 3,567.38 and 818.22 is: 1,227.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.15 : 3,567.38 = 818.22 : x
  2. Step 2: Convert to fraction form
    2,378.15/3,567.38 = 818.22/x
  3. Step 3: Cross multiply
    2,378.15x = 3,567.38 × 818.22
  4. Step 4: Simplify right side
    2,378.15x = 2,918,897.57
  5. Step 5: Solve for x
    x = 2,918,897.57/2,378.15
  6. Step 6: Final answer
    x = 1,227.38

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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.