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Finding the Fourth Proportional to 4,999.89, 6,900.07 and 2,876.11

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Solution

The fourth proportional to 4,999.89, 6,900.07 and 2,876.11 is: 3,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.89 : 6,900.07 = 2,876.11 : x
  2. Step 2: Convert to fraction form
    4,999.89/6,900.07 = 2,876.11/x
  3. Step 3: Cross multiply
    4,999.89x = 6,900.07 × 2,876.11
  4. Step 4: Simplify right side
    4,999.89x = 19,845,360.33
  5. Step 5: Solve for x
    x = 19,845,360.33/4,999.89
  6. Step 6: Final answer
    x = 3,969.16

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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.