Home / 3,948.48-5,920.02-2,699.28

Finding the Fourth Proportional to 3,948.48, 5,920.02 and 2,699.28

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Solution

The fourth proportional to 3,948.48, 5,920.02 and 2,699.28 is: 4,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.48 : 5,920.02 = 2,699.28 : x
  2. Step 2: Convert to fraction form
    3,948.48/5,920.02 = 2,699.28/x
  3. Step 3: Cross multiply
    3,948.48x = 5,920.02 × 2,699.28
  4. Step 4: Simplify right side
    3,948.48x = 15,979,791.59
  5. Step 5: Solve for x
    x = 15,979,791.59/3,948.48
  6. Step 6: Final answer
    x = 4,047.07

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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.