Home / 2,734.44-3,772.08-1,987.20

Finding the Fourth Proportional to 2,734.44, 3,772.08 and 1,987.20

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Solution

The fourth proportional to 2,734.44, 3,772.08 and 1,987.20 is: 2,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.44 : 3,772.08 = 1,987.20 : x
  2. Step 2: Convert to fraction form
    2,734.44/3,772.08 = 1,987.20/x
  3. Step 3: Cross multiply
    2,734.44x = 3,772.08 × 1,987.20
  4. Step 4: Simplify right side
    2,734.44x = 7,495,877.38
  5. Step 5: Solve for x
    x = 7,495,877.38/2,734.44
  6. Step 6: Final answer
    x = 2,741.28

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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.