Home / 4,999.60-6,899.76-2,761.36

Finding the Fourth Proportional to 4,999.60, 6,899.76 and 2,761.36

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Solution

The fourth proportional to 4,999.60, 6,899.76 and 2,761.36 is: 3,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.60 : 6,899.76 = 2,761.36 : x
  2. Step 2: Convert to fraction form
    4,999.60/6,899.76 = 2,761.36/x
  3. Step 3: Cross multiply
    4,999.60x = 6,899.76 × 2,761.36
  4. Step 4: Simplify right side
    4,999.60x = 19,052,721.27
  5. Step 5: Solve for x
    x = 19,052,721.27/4,999.60
  6. Step 6: Final answer
    x = 3,810.85

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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.