Home / 7,278.67-10,045.11-4,135.42

Finding the Fourth Proportional to 7,278.67, 10,045.11 and 4,135.42

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Solution

The fourth proportional to 7,278.67, 10,045.11 and 4,135.42 is: 5,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.67 : 10,045.11 = 4,135.42 : x
  2. Step 2: Convert to fraction form
    7,278.67/10,045.11 = 4,135.42/x
  3. Step 3: Cross multiply
    7,278.67x = 10,045.11 × 4,135.42
  4. Step 4: Simplify right side
    7,278.67x = 41,540,748.80
  5. Step 5: Solve for x
    x = 41,540,748.80/7,278.67
  6. Step 6: Final answer
    x = 5,707.19

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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.