Home / 7,514.80-11,278.60-3,361.20

Finding the Fourth Proportional to 7,514.80, 11,278.60 and 3,361.20

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Solution

The fourth proportional to 7,514.80, 11,278.60 and 3,361.20 is: 5,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,514.80 : 11,278.60 = 3,361.20 : x
  2. Step 2: Convert to fraction form
    7,514.80/11,278.60 = 3,361.20/x
  3. Step 3: Cross multiply
    7,514.80x = 11,278.60 × 3,361.20
  4. Step 4: Simplify right side
    7,514.80x = 37,909,630.32
  5. Step 5: Solve for x
    x = 37,909,630.32/7,514.80
  6. Step 6: Final answer
    x = 5,044.66

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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.