Home / 2,887.38-4,335.12-1,788.48

Finding the Fourth Proportional to 2,887.38, 4,335.12 and 1,788.48

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Solution

The fourth proportional to 2,887.38, 4,335.12 and 1,788.48 is: 2,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.38 : 4,335.12 = 1,788.48 : x
  2. Step 2: Convert to fraction form
    2,887.38/4,335.12 = 1,788.48/x
  3. Step 3: Cross multiply
    2,887.38x = 4,335.12 × 1,788.48
  4. Step 4: Simplify right side
    2,887.38x = 7,753,275.42
  5. Step 5: Solve for x
    x = 7,753,275.42/2,887.38
  6. Step 6: Final answer
    x = 2,685.23

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1.5x scale

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.