Home / 2,887.92-3,951.18-2,875.68

Finding the Fourth Proportional to 2,887.92, 3,951.18 and 2,875.68

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Solution

The fourth proportional to 2,887.92, 3,951.18 and 2,875.68 is: 3,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.92 : 3,951.18 = 2,875.68 : x
  2. Step 2: Convert to fraction form
    2,887.92/3,951.18 = 2,875.68/x
  3. Step 3: Cross multiply
    2,887.92x = 3,951.18 × 2,875.68
  4. Step 4: Simplify right side
    2,887.92x = 11,362,329.30
  5. Step 5: Solve for x
    x = 11,362,329.30/2,887.92
  6. Step 6: Final answer
    x = 3,934.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.