Home / 2,929.44-4,389.48-2,145.81

Finding the Fourth Proportional to 2,929.44, 4,389.48 and 2,145.81

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Solution

The fourth proportional to 2,929.44, 4,389.48 and 2,145.81 is: 3,215.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.44 : 4,389.48 = 2,145.81 : x
  2. Step 2: Convert to fraction form
    2,929.44/4,389.48 = 2,145.81/x
  3. Step 3: Cross multiply
    2,929.44x = 4,389.48 × 2,145.81
  4. Step 4: Simplify right side
    2,929.44x = 9,418,990.08
  5. Step 5: Solve for x
    x = 9,418,990.08/2,929.44
  6. Step 6: Final answer
    x = 3,215.29

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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.