Home / 2,551.06-3,820.02-2,139.13

Finding the Fourth Proportional to 2,551.06, 3,820.02 and 2,139.13

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Solution

The fourth proportional to 2,551.06, 3,820.02 and 2,139.13 is: 3,203.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.06 : 3,820.02 = 2,139.13 : x
  2. Step 2: Convert to fraction form
    2,551.06/3,820.02 = 2,139.13/x
  3. Step 3: Cross multiply
    2,551.06x = 3,820.02 × 2,139.13
  4. Step 4: Simplify right side
    2,551.06x = 8,171,519.38
  5. Step 5: Solve for x
    x = 8,171,519.38/2,551.06
  6. Step 6: Final answer
    x = 3,203.19

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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.