Home / 3,105.50-4,658.86-1,374.13

Finding the Fourth Proportional to 3,105.50, 4,658.86 and 1,374.13

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Solution

The fourth proportional to 3,105.50, 4,658.86 and 1,374.13 is: 2,061.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.50 : 4,658.86 = 1,374.13 : x
  2. Step 2: Convert to fraction form
    3,105.50/4,658.86 = 1,374.13/x
  3. Step 3: Cross multiply
    3,105.50x = 4,658.86 × 1,374.13
  4. Step 4: Simplify right side
    3,105.50x = 6,401,879.29
  5. Step 5: Solve for x
    x = 6,401,879.29/3,105.50
  6. Step 6: Final answer
    x = 2,061.46

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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.