Home / 2,929.60-4,386-2,239.20

Finding the Fourth Proportional to 2,929.60, 4,386 and 2,239.20

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Solution

The fourth proportional to 2,929.60, 4,386 and 2,239.20 is: 3,352.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.60 : 4,386 = 2,239.20 : x
  2. Step 2: Convert to fraction form
    2,929.60/4,386 = 2,239.20/x
  3. Step 3: Cross multiply
    2,929.60x = 4,386 × 2,239.20
  4. Step 4: Simplify right side
    2,929.60x = 9,821,131.20
  5. Step 5: Solve for x
    x = 9,821,131.20/2,929.60
  6. Step 6: Final answer
    x = 3,352.38

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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.