Home / 3,550.25-4,899.29-1,978.31

Finding the Fourth Proportional to 3,550.25, 4,899.29 and 1,978.31

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Solution

The fourth proportional to 3,550.25, 4,899.29 and 1,978.31 is: 2,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.25 : 4,899.29 = 1,978.31 : x
  2. Step 2: Convert to fraction form
    3,550.25/4,899.29 = 1,978.31/x
  3. Step 3: Cross multiply
    3,550.25x = 4,899.29 × 1,978.31
  4. Step 4: Simplify right side
    3,550.25x = 9,692,316.76
  5. Step 5: Solve for x
    x = 9,692,316.76/3,550.25
  6. Step 6: Final answer
    x = 2,730.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.