Home / 3,315.30-4,967.98-1,669.78

Finding the Fourth Proportional to 3,315.30, 4,967.98 and 1,669.78

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Solution

The fourth proportional to 3,315.30, 4,967.98 and 1,669.78 is: 2,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.30 : 4,967.98 = 1,669.78 : x
  2. Step 2: Convert to fraction form
    3,315.30/4,967.98 = 1,669.78/x
  3. Step 3: Cross multiply
    3,315.30x = 4,967.98 × 1,669.78
  4. Step 4: Simplify right side
    3,315.30x = 8,295,445.07
  5. Step 5: Solve for x
    x = 8,295,445.07/3,315.30
  6. Step 6: Final answer
    x = 2,502.17

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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.