Home / 5,515.55-7,610.85-3,157.82

Finding the Fourth Proportional to 5,515.55, 7,610.85 and 3,157.82

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Solution

The fourth proportional to 5,515.55, 7,610.85 and 3,157.82 is: 4,357.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.55 : 7,610.85 = 3,157.82 : x
  2. Step 2: Convert to fraction form
    5,515.55/7,610.85 = 3,157.82/x
  3. Step 3: Cross multiply
    5,515.55x = 7,610.85 × 3,157.82
  4. Step 4: Simplify right side
    5,515.55x = 24,033,656.29
  5. Step 5: Solve for x
    x = 24,033,656.29/5,515.55
  6. Step 6: Final answer
    x = 4,357.44

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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.