Home / 3,114-4,638.60-2,974.32

Finding the Fourth Proportional to 3,114, 4,638.60 and 2,974.32

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Solution

The fourth proportional to 3,114, 4,638.60 and 2,974.32 is: 4,430.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114 : 4,638.60 = 2,974.32 : x
  2. Step 2: Convert to fraction form
    3,114/4,638.60 = 2,974.32/x
  3. Step 3: Cross multiply
    3,114x = 4,638.60 × 2,974.32
  4. Step 4: Simplify right side
    3,114x = 13,796,680.75
  5. Step 5: Solve for x
    x = 13,796,680.75/3,114
  6. Step 6: Final answer
    x = 4,430.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.