Home / 2,948.74-4,069.30-1,689.85

Finding the Fourth Proportional to 2,948.74, 4,069.30 and 1,689.85

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Solution

The fourth proportional to 2,948.74, 4,069.30 and 1,689.85 is: 2,332.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.74 : 4,069.30 = 1,689.85 : x
  2. Step 2: Convert to fraction form
    2,948.74/4,069.30 = 1,689.85/x
  3. Step 3: Cross multiply
    2,948.74x = 4,069.30 × 1,689.85
  4. Step 4: Simplify right side
    2,948.74x = 6,876,506.61
  5. Step 5: Solve for x
    x = 6,876,506.61/2,948.74
  6. Step 6: Final answer
    x = 2,332.02

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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.