Home / 5,235.20-7,217.11-3,742.58

Finding the Fourth Proportional to 5,235.20, 7,217.11 and 3,742.58

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Solution

The fourth proportional to 5,235.20, 7,217.11 and 3,742.58 is: 5,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.20 : 7,217.11 = 3,742.58 : x
  2. Step 2: Convert to fraction form
    5,235.20/7,217.11 = 3,742.58/x
  3. Step 3: Cross multiply
    5,235.20x = 7,217.11 × 3,742.58
  4. Step 4: Simplify right side
    5,235.20x = 27,010,566.10
  5. Step 5: Solve for x
    x = 27,010,566.10/5,235.20
  6. Step 6: Final answer
    x = 5,159.41

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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.