Home / 3,648.84-5,042.20-2,985.44

Finding the Fourth Proportional to 3,648.84, 5,042.20 and 2,985.44

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Solution

The fourth proportional to 3,648.84, 5,042.20 and 2,985.44 is: 4,125.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.84 : 5,042.20 = 2,985.44 : x
  2. Step 2: Convert to fraction form
    3,648.84/5,042.20 = 2,985.44/x
  3. Step 3: Cross multiply
    3,648.84x = 5,042.20 × 2,985.44
  4. Step 4: Simplify right side
    3,648.84x = 15,053,185.57
  5. Step 5: Solve for x
    x = 15,053,185.57/3,648.84
  6. Step 6: Final answer
    x = 4,125.47

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1.5x scale

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.