Home / 3,358.71-5,036.65-1,278.31

Finding the Fourth Proportional to 3,358.71, 5,036.65 and 1,278.31

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Solution

The fourth proportional to 3,358.71, 5,036.65 and 1,278.31 is: 1,916.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.71 : 5,036.65 = 1,278.31 : x
  2. Step 2: Convert to fraction form
    3,358.71/5,036.65 = 1,278.31/x
  3. Step 3: Cross multiply
    3,358.71x = 5,036.65 × 1,278.31
  4. Step 4: Simplify right side
    3,358.71x = 6,438,400.06
  5. Step 5: Solve for x
    x = 6,438,400.06/3,358.71
  6. Step 6: Final answer
    x = 1,916.93

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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.