Home / 4,984.06-6,876.48-2,887.78

Finding the Fourth Proportional to 4,984.06, 6,876.48 and 2,887.78

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Solution

The fourth proportional to 4,984.06, 6,876.48 and 2,887.78 is: 3,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.06 : 6,876.48 = 2,887.78 : x
  2. Step 2: Convert to fraction form
    4,984.06/6,876.48 = 2,887.78/x
  3. Step 3: Cross multiply
    4,984.06x = 6,876.48 × 2,887.78
  4. Step 4: Simplify right side
    4,984.06x = 19,857,761.41
  5. Step 5: Solve for x
    x = 19,857,761.41/4,984.06
  6. Step 6: Final answer
    x = 3,984.25

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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.