Home / 3,207.40-4,815.18-2,159.93

Finding the Fourth Proportional to 3,207.40, 4,815.18 and 2,159.93

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Solution

The fourth proportional to 3,207.40, 4,815.18 and 2,159.93 is: 3,242.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.40 : 4,815.18 = 2,159.93 : x
  2. Step 2: Convert to fraction form
    3,207.40/4,815.18 = 2,159.93/x
  3. Step 3: Cross multiply
    3,207.40x = 4,815.18 × 2,159.93
  4. Step 4: Simplify right side
    3,207.40x = 10,400,463.78
  5. Step 5: Solve for x
    x = 10,400,463.78/3,207.40
  6. Step 6: Final answer
    x = 3,242.65

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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.