Home / 4,456.30-6,680.69-2,809.21

Finding the Fourth Proportional to 4,456.30, 6,680.69 and 2,809.21

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Solution

The fourth proportional to 4,456.30, 6,680.69 and 2,809.21 is: 4,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,456.30 : 6,680.69 = 2,809.21 : x
  2. Step 2: Convert to fraction form
    4,456.30/6,680.69 = 2,809.21/x
  3. Step 3: Cross multiply
    4,456.30x = 6,680.69 × 2,809.21
  4. Step 4: Simplify right side
    4,456.30x = 18,767,463.81
  5. Step 5: Solve for x
    x = 18,767,463.81/4,456.30
  6. Step 6: Final answer
    x = 4,211.45

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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.