Home / 2,805.12-4,207.68-1,343.52

Finding the Fourth Proportional to 2,805.12, 4,207.68 and 1,343.52

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Solution

The fourth proportional to 2,805.12, 4,207.68 and 1,343.52 is: 2,015.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.12 : 4,207.68 = 1,343.52 : x
  2. Step 2: Convert to fraction form
    2,805.12/4,207.68 = 1,343.52/x
  3. Step 3: Cross multiply
    2,805.12x = 4,207.68 × 1,343.52
  4. Step 4: Simplify right side
    2,805.12x = 5,653,102.23
  5. Step 5: Solve for x
    x = 5,653,102.23/2,805.12
  6. Step 6: Final answer
    x = 2,015.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.