Home / 2,949.52-4,423.32-1,389.28

Finding the Fourth Proportional to 2,949.52, 4,423.32 and 1,389.28

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Solution

The fourth proportional to 2,949.52, 4,423.32 and 1,389.28 is: 2,083.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.52 : 4,423.32 = 1,389.28 : x
  2. Step 2: Convert to fraction form
    2,949.52/4,423.32 = 1,389.28/x
  3. Step 3: Cross multiply
    2,949.52x = 4,423.32 × 1,389.28
  4. Step 4: Simplify right side
    2,949.52x = 6,145,230.01
  5. Step 5: Solve for x
    x = 6,145,230.01/2,949.52
  6. Step 6: Final answer
    x = 2,083.47

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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.