Home / 3,929.44-5,420.80-2,357.52

Finding the Fourth Proportional to 3,929.44, 5,420.80 and 2,357.52

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Solution

The fourth proportional to 3,929.44, 5,420.80 and 2,357.52 is: 3,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.44 : 5,420.80 = 2,357.52 : x
  2. Step 2: Convert to fraction form
    3,929.44/5,420.80 = 2,357.52/x
  3. Step 3: Cross multiply
    3,929.44x = 5,420.80 × 2,357.52
  4. Step 4: Simplify right side
    3,929.44x = 12,779,644.42
  5. Step 5: Solve for x
    x = 12,779,644.42/3,929.44
  6. Step 6: Final answer
    x = 3,252.28

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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.