Home / 3,020.61-4,525.91-2,138.76

Finding the Fourth Proportional to 3,020.61, 4,525.91 and 2,138.76

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Solution

The fourth proportional to 3,020.61, 4,525.91 and 2,138.76 is: 3,204.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.61 : 4,525.91 = 2,138.76 : x
  2. Step 2: Convert to fraction form
    3,020.61/4,525.91 = 2,138.76/x
  3. Step 3: Cross multiply
    3,020.61x = 4,525.91 × 2,138.76
  4. Step 4: Simplify right side
    3,020.61x = 9,679,829.30
  5. Step 5: Solve for x
    x = 9,679,829.30/3,020.61
  6. Step 6: Final answer
    x = 3,204.59

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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.