Home / 2,427.57-3,641.87-1,388.07

Finding the Fourth Proportional to 2,427.57, 3,641.87 and 1,388.07

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Solution

The fourth proportional to 2,427.57, 3,641.87 and 1,388.07 is: 2,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.57 : 3,641.87 = 1,388.07 : x
  2. Step 2: Convert to fraction form
    2,427.57/3,641.87 = 1,388.07/x
  3. Step 3: Cross multiply
    2,427.57x = 3,641.87 × 1,388.07
  4. Step 4: Simplify right side
    2,427.57x = 5,055,170.49
  5. Step 5: Solve for x
    x = 5,055,170.49/2,427.57
  6. Step 6: Final answer
    x = 2,082.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.