Home / 4,168.16-6,251.78-1,670.40

Finding the Fourth Proportional to 4,168.16, 6,251.78 and 1,670.40

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Solution

The fourth proportional to 4,168.16, 6,251.78 and 1,670.40 is: 2,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,168.16 : 6,251.78 = 1,670.40 : x
  2. Step 2: Convert to fraction form
    4,168.16/6,251.78 = 1,670.40/x
  3. Step 3: Cross multiply
    4,168.16x = 6,251.78 × 1,670.40
  4. Step 4: Simplify right side
    4,168.16x = 10,442,973.31
  5. Step 5: Solve for x
    x = 10,442,973.31/4,168.16
  6. Step 6: Final answer
    x = 2,505.42

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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.