Home / 3,105.12-4,656.24-1,545.06

Finding the Fourth Proportional to 3,105.12, 4,656.24 and 1,545.06

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Solution

The fourth proportional to 3,105.12, 4,656.24 and 1,545.06 is: 2,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.12 : 4,656.24 = 1,545.06 : x
  2. Step 2: Convert to fraction form
    3,105.12/4,656.24 = 1,545.06/x
  3. Step 3: Cross multiply
    3,105.12x = 4,656.24 × 1,545.06
  4. Step 4: Simplify right side
    3,105.12x = 7,194,170.17
  5. Step 5: Solve for x
    x = 7,194,170.17/3,105.12
  6. Step 6: Final answer
    x = 2,316.87

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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.