Home / 2,887.20-4,330.80-2,584.80

Finding the Fourth Proportional to 2,887.20, 4,330.80 and 2,584.80

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Solution

The fourth proportional to 2,887.20, 4,330.80 and 2,584.80 is: 3,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.20 : 4,330.80 = 2,584.80 : x
  2. Step 2: Convert to fraction form
    2,887.20/4,330.80 = 2,584.80/x
  3. Step 3: Cross multiply
    2,887.20x = 4,330.80 × 2,584.80
  4. Step 4: Simplify right side
    2,887.20x = 11,194,251.84
  5. Step 5: Solve for x
    x = 11,194,251.84/2,887.20
  6. Step 6: Final answer
    x = 3,877.20

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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.