Home / 3,422.96-5,143.56-1,864.12

Finding the Fourth Proportional to 3,422.96, 5,143.56 and 1,864.12

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Solution

The fourth proportional to 3,422.96, 5,143.56 and 1,864.12 is: 2,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.96 : 5,143.56 = 1,864.12 : x
  2. Step 2: Convert to fraction form
    3,422.96/5,143.56 = 1,864.12/x
  3. Step 3: Cross multiply
    3,422.96x = 5,143.56 × 1,864.12
  4. Step 4: Simplify right side
    3,422.96x = 9,588,213.07
  5. Step 5: Solve for x
    x = 9,588,213.07/3,422.96
  6. Step 6: Final answer
    x = 2,801.15

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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.