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Finding the Fourth Proportional to 4,999.13, 6,900.13 and 2,874.89

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Solution

The fourth proportional to 4,999.13, 6,900.13 and 2,874.89 is: 3,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.13 : 6,900.13 = 2,874.89 : x
  2. Step 2: Convert to fraction form
    4,999.13/6,900.13 = 2,874.89/x
  3. Step 3: Cross multiply
    4,999.13x = 6,900.13 × 2,874.89
  4. Step 4: Simplify right side
    4,999.13x = 19,837,143.67
  5. Step 5: Solve for x
    x = 19,837,143.67/4,999.13
  6. Step 6: Final answer
    x = 3,968.12

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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.