Home / 2,039.38-2,813.48-1,242.49

Finding the Fourth Proportional to 2,039.38, 2,813.48 and 1,242.49

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Solution

The fourth proportional to 2,039.38, 2,813.48 and 1,242.49 is: 1,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.38 : 2,813.48 = 1,242.49 : x
  2. Step 2: Convert to fraction form
    2,039.38/2,813.48 = 1,242.49/x
  3. Step 3: Cross multiply
    2,039.38x = 2,813.48 × 1,242.49
  4. Step 4: Simplify right side
    2,039.38x = 3,495,724.44
  5. Step 5: Solve for x
    x = 3,495,724.44/2,039.38
  6. Step 6: Final answer
    x = 1,714.11

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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.