Home / 7,215.85-9,958.30-4,029.14

Finding the Fourth Proportional to 7,215.85, 9,958.30 and 4,029.14

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Solution

The fourth proportional to 7,215.85, 9,958.30 and 4,029.14 is: 5,560.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.85 : 9,958.30 = 4,029.14 : x
  2. Step 2: Convert to fraction form
    7,215.85/9,958.30 = 4,029.14/x
  3. Step 3: Cross multiply
    7,215.85x = 9,958.30 × 4,029.14
  4. Step 4: Simplify right side
    7,215.85x = 40,123,428.01
  5. Step 5: Solve for x
    x = 40,123,428.01/7,215.85
  6. Step 6: Final answer
    x = 5,560.46

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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.