Home / 3,264.78-4,893.07-1,315.90

Finding the Fourth Proportional to 3,264.78, 4,893.07 and 1,315.90

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Solution

The fourth proportional to 3,264.78, 4,893.07 and 1,315.90 is: 1,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264.78 : 4,893.07 = 1,315.90 : x
  2. Step 2: Convert to fraction form
    3,264.78/4,893.07 = 1,315.90/x
  3. Step 3: Cross multiply
    3,264.78x = 4,893.07 × 1,315.90
  4. Step 4: Simplify right side
    3,264.78x = 6,438,790.81
  5. Step 5: Solve for x
    x = 6,438,790.81/3,264.78
  6. Step 6: Final answer
    x = 1,972.20

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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.