Home / 3,686.40-5,083.74-2,428.44

Finding the Fourth Proportional to 3,686.40, 5,083.74 and 2,428.44

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Solution

The fourth proportional to 3,686.40, 5,083.74 and 2,428.44 is: 3,348.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.40 : 5,083.74 = 2,428.44 : x
  2. Step 2: Convert to fraction form
    3,686.40/5,083.74 = 2,428.44/x
  3. Step 3: Cross multiply
    3,686.40x = 5,083.74 × 2,428.44
  4. Step 4: Simplify right side
    3,686.40x = 12,345,557.57
  5. Step 5: Solve for x
    x = 12,345,557.57/3,686.40
  6. Step 6: Final answer
    x = 3,348.95

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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.