Home / 7,112.31-10,670.73-3,414.79

Finding the Fourth Proportional to 7,112.31, 10,670.73 and 3,414.79

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Solution

The fourth proportional to 7,112.31, 10,670.73 and 3,414.79 is: 5,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.31 : 10,670.73 = 3,414.79 : x
  2. Step 2: Convert to fraction form
    7,112.31/10,670.73 = 3,414.79/x
  3. Step 3: Cross multiply
    7,112.31x = 10,670.73 × 3,414.79
  4. Step 4: Simplify right side
    7,112.31x = 36,438,302.10
  5. Step 5: Solve for x
    x = 36,438,302.10/7,112.31
  6. Step 6: Final answer
    x = 5,123.27

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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.