Home / 2,897.10-3,998.43-2,454.30

Finding the Fourth Proportional to 2,897.10, 3,998.43 and 2,454.30

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Solution

The fourth proportional to 2,897.10, 3,998.43 and 2,454.30 is: 3,387.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.10 : 3,998.43 = 2,454.30 : x
  2. Step 2: Convert to fraction form
    2,897.10/3,998.43 = 2,454.30/x
  3. Step 3: Cross multiply
    2,897.10x = 3,998.43 × 2,454.30
  4. Step 4: Simplify right side
    2,897.10x = 9,813,346.75
  5. Step 5: Solve for x
    x = 9,813,346.75/2,897.10
  6. Step 6: Final answer
    x = 3,387.30

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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.