Home / 2,921.76-4,377.78-2,403.36

Finding the Fourth Proportional to 2,921.76, 4,377.78 and 2,403.36

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Solution

The fourth proportional to 2,921.76, 4,377.78 and 2,403.36 is: 3,601.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.76 : 4,377.78 = 2,403.36 : x
  2. Step 2: Convert to fraction form
    2,921.76/4,377.78 = 2,403.36/x
  3. Step 3: Cross multiply
    2,921.76x = 4,377.78 × 2,403.36
  4. Step 4: Simplify right side
    2,921.76x = 10,521,381.34
  5. Step 5: Solve for x
    x = 10,521,381.34/2,921.76
  6. Step 6: Final answer
    x = 3,601.04

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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.