Home / 3,126.99-4,312.84-2,182.48

Finding the Fourth Proportional to 3,126.99, 4,312.84 and 2,182.48

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Solution

The fourth proportional to 3,126.99, 4,312.84 and 2,182.48 is: 3,010.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.99 : 4,312.84 = 2,182.48 : x
  2. Step 2: Convert to fraction form
    3,126.99/4,312.84 = 2,182.48/x
  3. Step 3: Cross multiply
    3,126.99x = 4,312.84 × 2,182.48
  4. Step 4: Simplify right side
    3,126.99x = 9,412,654.57
  5. Step 5: Solve for x
    x = 9,412,654.57/3,126.99
  6. Step 6: Final answer
    x = 3,010.14

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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.