Home / 2,427.72-3,350.28-1,380

Finding the Fourth Proportional to 2,427.72, 3,350.28 and 1,380

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Solution

The fourth proportional to 2,427.72, 3,350.28 and 1,380 is: 1,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.72 : 3,350.28 = 1,380 : x
  2. Step 2: Convert to fraction form
    2,427.72/3,350.28 = 1,380/x
  3. Step 3: Cross multiply
    2,427.72x = 3,350.28 × 1,380
  4. Step 4: Simplify right side
    2,427.72x = 4,623,386.40
  5. Step 5: Solve for x
    x = 4,623,386.40/2,427.72
  6. Step 6: Final answer
    x = 1,904.42

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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.