Home / 4,877.20-6,725.64-2,887.84

Finding the Fourth Proportional to 4,877.20, 6,725.64 and 2,887.84

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Solution

The fourth proportional to 4,877.20, 6,725.64 and 2,887.84 is: 3,982.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.20 : 6,725.64 = 2,887.84 : x
  2. Step 2: Convert to fraction form
    4,877.20/6,725.64 = 2,887.84/x
  3. Step 3: Cross multiply
    4,877.20x = 6,725.64 × 2,887.84
  4. Step 4: Simplify right side
    4,877.20x = 19,422,572.22
  5. Step 5: Solve for x
    x = 19,422,572.22/4,877.20
  6. Step 6: Final answer
    x = 3,982.32

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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.