Home / 3,264.90-4,899.78-1,317.12

Finding the Fourth Proportional to 3,264.90, 4,899.78 and 1,317.12

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Solution

The fourth proportional to 3,264.90, 4,899.78 and 1,317.12 is: 1,976.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264.90 : 4,899.78 = 1,317.12 : x
  2. Step 2: Convert to fraction form
    3,264.90/4,899.78 = 1,317.12/x
  3. Step 3: Cross multiply
    3,264.90x = 4,899.78 × 1,317.12
  4. Step 4: Simplify right side
    3,264.90x = 6,453,598.23
  5. Step 5: Solve for x
    x = 6,453,598.23/3,264.90
  6. Step 6: Final answer
    x = 1,976.66

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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.