Home / 2,708.20-3,739.02-2,428

Finding the Fourth Proportional to 2,708.20, 3,739.02 and 2,428

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Solution

The fourth proportional to 2,708.20, 3,739.02 and 2,428 is: 3,352.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.20 : 3,739.02 = 2,428 : x
  2. Step 2: Convert to fraction form
    2,708.20/3,739.02 = 2,428/x
  3. Step 3: Cross multiply
    2,708.20x = 3,739.02 × 2,428
  4. Step 4: Simplify right side
    2,708.20x = 9,078,340.56
  5. Step 5: Solve for x
    x = 9,078,340.56/2,708.20
  6. Step 6: Final answer
    x = 3,352.17

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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.