Home / 3,422.16-5,134-1,113.64

Finding the Fourth Proportional to 3,422.16, 5,134 and 1,113.64

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Solution

The fourth proportional to 3,422.16, 5,134 and 1,113.64 is: 1,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.16 : 5,134 = 1,113.64 : x
  2. Step 2: Convert to fraction form
    3,422.16/5,134 = 1,113.64/x
  3. Step 3: Cross multiply
    3,422.16x = 5,134 × 1,113.64
  4. Step 4: Simplify right side
    3,422.16x = 5,717,427.76
  5. Step 5: Solve for x
    x = 5,717,427.76/3,422.16
  6. Step 6: Final answer
    x = 1,670.71

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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.