Home / 2,256.72-3,113.48-1,372.20

Finding the Fourth Proportional to 2,256.72, 3,113.48 and 1,372.20

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Solution

The fourth proportional to 2,256.72, 3,113.48 and 1,372.20 is: 1,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.72 : 3,113.48 = 1,372.20 : x
  2. Step 2: Convert to fraction form
    2,256.72/3,113.48 = 1,372.20/x
  3. Step 3: Cross multiply
    2,256.72x = 3,113.48 × 1,372.20
  4. Step 4: Simplify right side
    2,256.72x = 4,272,310.40
  5. Step 5: Solve for x
    x = 4,272,310.40/2,256.72
  6. Step 6: Final answer
    x = 1,893.15

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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.