Home / 7,115.06-10,679.05-3,607.51

Finding the Fourth Proportional to 7,115.06, 10,679.05 and 3,607.51

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Solution

The fourth proportional to 7,115.06, 10,679.05 and 3,607.51 is: 5,414.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.06 : 10,679.05 = 3,607.51 : x
  2. Step 2: Convert to fraction form
    7,115.06/10,679.05 = 3,607.51/x
  3. Step 3: Cross multiply
    7,115.06x = 10,679.05 × 3,607.51
  4. Step 4: Simplify right side
    7,115.06x = 38,524,779.67
  5. Step 5: Solve for x
    x = 38,524,779.67/7,115.06
  6. Step 6: Final answer
    x = 5,414.54

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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.