Home / 3,142.29-4,336.64-1,815.97

Finding the Fourth Proportional to 3,142.29, 4,336.64 and 1,815.97

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Solution

The fourth proportional to 3,142.29, 4,336.64 and 1,815.97 is: 2,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.29 : 4,336.64 = 1,815.97 : x
  2. Step 2: Convert to fraction form
    3,142.29/4,336.64 = 1,815.97/x
  3. Step 3: Cross multiply
    3,142.29x = 4,336.64 × 1,815.97
  4. Step 4: Simplify right side
    3,142.29x = 7,875,203.16
  5. Step 5: Solve for x
    x = 7,875,203.16/3,142.29
  6. Step 6: Final answer
    x = 2,506.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.