Home / 4,291.78-5,920.40-3,242.02

Finding the Fourth Proportional to 4,291.78, 5,920.40 and 3,242.02

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Solution

The fourth proportional to 4,291.78, 5,920.40 and 3,242.02 is: 4,472.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.78 : 5,920.40 = 3,242.02 : x
  2. Step 2: Convert to fraction form
    4,291.78/5,920.40 = 3,242.02/x
  3. Step 3: Cross multiply
    4,291.78x = 5,920.40 × 3,242.02
  4. Step 4: Simplify right side
    4,291.78x = 19,194,055.21
  5. Step 5: Solve for x
    x = 19,194,055.21/4,291.78
  6. Step 6: Final answer
    x = 4,472.28

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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.