Home / 2,799.85-3,865.45-2,488.46

Finding the Fourth Proportional to 2,799.85, 3,865.45 and 2,488.46

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Solution

The fourth proportional to 2,799.85, 3,865.45 and 2,488.46 is: 3,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.85 : 3,865.45 = 2,488.46 : x
  2. Step 2: Convert to fraction form
    2,799.85/3,865.45 = 2,488.46/x
  3. Step 3: Cross multiply
    2,799.85x = 3,865.45 × 2,488.46
  4. Step 4: Simplify right side
    2,799.85x = 9,619,017.71
  5. Step 5: Solve for x
    x = 9,619,017.71/2,799.85
  6. Step 6: Final answer
    x = 3,435.55

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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.