Home / 2,974.16-4,104.40-1,647.90

Finding the Fourth Proportional to 2,974.16, 4,104.40 and 1,647.90

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Solution

The fourth proportional to 2,974.16, 4,104.40 and 1,647.90 is: 2,274.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.16 : 4,104.40 = 1,647.90 : x
  2. Step 2: Convert to fraction form
    2,974.16/4,104.40 = 1,647.90/x
  3. Step 3: Cross multiply
    2,974.16x = 4,104.40 × 1,647.90
  4. Step 4: Simplify right side
    2,974.16x = 6,763,640.76
  5. Step 5: Solve for x
    x = 6,763,640.76/2,974.16
  6. Step 6: Final answer
    x = 2,274.13

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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.