Home / 3,849.30-5,312.02-2,080.90

Finding the Fourth Proportional to 3,849.30, 5,312.02 and 2,080.90

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Solution

The fourth proportional to 3,849.30, 5,312.02 and 2,080.90 is: 2,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.30 : 5,312.02 = 2,080.90 : x
  2. Step 2: Convert to fraction form
    3,849.30/5,312.02 = 2,080.90/x
  3. Step 3: Cross multiply
    3,849.30x = 5,312.02 × 2,080.90
  4. Step 4: Simplify right side
    3,849.30x = 11,053,782.42
  5. Step 5: Solve for x
    x = 11,053,782.42/3,849.30
  6. Step 6: Final answer
    x = 2,871.63

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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.