Home / 2,256.48-3,112.92-1,372.08

Finding the Fourth Proportional to 2,256.48, 3,112.92 and 1,372.08

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Solution

The fourth proportional to 2,256.48, 3,112.92 and 1,372.08 is: 1,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.48 : 3,112.92 = 1,372.08 : x
  2. Step 2: Convert to fraction form
    2,256.48/3,112.92 = 1,372.08/x
  3. Step 3: Cross multiply
    2,256.48x = 3,112.92 × 1,372.08
  4. Step 4: Simplify right side
    2,256.48x = 4,271,175.27
  5. Step 5: Solve for x
    x = 4,271,175.27/2,256.48
  6. Step 6: Final answer
    x = 1,892.85

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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.