Home / 2,959.40-4,438.13-1,398.57

Finding the Fourth Proportional to 2,959.40, 4,438.13 and 1,398.57

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Solution

The fourth proportional to 2,959.40, 4,438.13 and 1,398.57 is: 2,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.40 : 4,438.13 = 1,398.57 : x
  2. Step 2: Convert to fraction form
    2,959.40/4,438.13 = 1,398.57/x
  3. Step 3: Cross multiply
    2,959.40x = 4,438.13 × 1,398.57
  4. Step 4: Simplify right side
    2,959.40x = 6,207,011.84
  5. Step 5: Solve for x
    x = 6,207,011.84/2,959.40
  6. Step 6: Final answer
    x = 2,097.39

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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.