Home / 2,929.28-4,389.52-2,198.40

Finding the Fourth Proportional to 2,929.28, 4,389.52 and 2,198.40

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Solution

The fourth proportional to 2,929.28, 4,389.52 and 2,198.40 is: 3,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.28 : 4,389.52 = 2,198.40 : x
  2. Step 2: Convert to fraction form
    2,929.28/4,389.52 = 2,198.40/x
  3. Step 3: Cross multiply
    2,929.28x = 4,389.52 × 2,198.40
  4. Step 4: Simplify right side
    2,929.28x = 9,649,920.77
  5. Step 5: Solve for x
    x = 9,649,920.77/2,929.28
  6. Step 6: Final answer
    x = 3,294.30

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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.