Home / 1,351.23-1,849.84-1,342.12

Finding the Fourth Proportional to 1,351.23, 1,849.84 and 1,342.12

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Solution

The fourth proportional to 1,351.23, 1,849.84 and 1,342.12 is: 1,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.23 : 1,849.84 = 1,342.12 : x
  2. Step 2: Convert to fraction form
    1,351.23/1,849.84 = 1,342.12/x
  3. Step 3: Cross multiply
    1,351.23x = 1,849.84 × 1,342.12
  4. Step 4: Simplify right side
    1,351.23x = 2,482,702.75
  5. Step 5: Solve for x
    x = 2,482,702.75/1,351.23
  6. Step 6: Final answer
    x = 1,837.36

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.