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Finding the Fourth Proportional to 7,798.98, 11,699.98 and 2,868.66

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Solution

The fourth proportional to 7,798.98, 11,699.98 and 2,868.66 is: 4,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.98 : 11,699.98 = 2,868.66 : x
  2. Step 2: Convert to fraction form
    7,798.98/11,699.98 = 2,868.66/x
  3. Step 3: Cross multiply
    7,798.98x = 11,699.98 × 2,868.66
  4. Step 4: Simplify right side
    7,798.98x = 33,563,264.63
  5. Step 5: Solve for x
    x = 33,563,264.63/7,798.98
  6. Step 6: Final answer
    x = 4,303.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.