Home / 2,959.86-4,438.17-1,398.90

Finding the Fourth Proportional to 2,959.86, 4,438.17 and 1,398.90

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Solution

The fourth proportional to 2,959.86, 4,438.17 and 1,398.90 is: 2,097.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.86 : 4,438.17 = 1,398.90 : x
  2. Step 2: Convert to fraction form
    2,959.86/4,438.17 = 1,398.90/x
  3. Step 3: Cross multiply
    2,959.86x = 4,438.17 × 1,398.90
  4. Step 4: Simplify right side
    2,959.86x = 6,208,556.01
  5. Step 5: Solve for x
    x = 6,208,556.01/2,959.86
  6. Step 6: Final answer
    x = 2,097.58

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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.