Home / 5,514.85-7,611.69-3,392.20

Finding the Fourth Proportional to 5,514.85, 7,611.69 and 3,392.20

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Solution

The fourth proportional to 5,514.85, 7,611.69 and 3,392.20 is: 4,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.85 : 7,611.69 = 3,392.20 : x
  2. Step 2: Convert to fraction form
    5,514.85/7,611.69 = 3,392.20/x
  3. Step 3: Cross multiply
    5,514.85x = 7,611.69 × 3,392.20
  4. Step 4: Simplify right side
    5,514.85x = 25,820,374.82
  5. Step 5: Solve for x
    x = 25,820,374.82/5,514.85
  6. Step 6: Final answer
    x = 4,681.97

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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.