Home / 2,476.62-3,418.20-1,428.75

Finding the Fourth Proportional to 2,476.62, 3,418.20 and 1,428.75

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Solution

The fourth proportional to 2,476.62, 3,418.20 and 1,428.75 is: 1,971.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.62 : 3,418.20 = 1,428.75 : x
  2. Step 2: Convert to fraction form
    2,476.62/3,418.20 = 1,428.75/x
  3. Step 3: Cross multiply
    2,476.62x = 3,418.20 × 1,428.75
  4. Step 4: Simplify right side
    2,476.62x = 4,883,753.25
  5. Step 5: Solve for x
    x = 4,883,753.25/2,476.62
  6. Step 6: Final answer
    x = 1,971.94

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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.