Home / 3,073.80-4,242.75-2,658.61

Finding the Fourth Proportional to 3,073.80, 4,242.75 and 2,658.61

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Solution

The fourth proportional to 3,073.80, 4,242.75 and 2,658.61 is: 3,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,073.80 : 4,242.75 = 2,658.61 : x
  2. Step 2: Convert to fraction form
    3,073.80/4,242.75 = 2,658.61/x
  3. Step 3: Cross multiply
    3,073.80x = 4,242.75 × 2,658.61
  4. Step 4: Simplify right side
    3,073.80x = 11,279,817.58
  5. Step 5: Solve for x
    x = 11,279,817.58/3,073.80
  6. Step 6: Final answer
    x = 3,669.67

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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.