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Finding the Fourth Proportional to 2,173.84, 3,260.68 and 875.12

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Solution

The fourth proportional to 2,173.84, 3,260.68 and 875.12 is: 1,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.84 : 3,260.68 = 875.12 : x
  2. Step 2: Convert to fraction form
    2,173.84/3,260.68 = 875.12/x
  3. Step 3: Cross multiply
    2,173.84x = 3,260.68 × 875.12
  4. Step 4: Simplify right side
    2,173.84x = 2,853,486.28
  5. Step 5: Solve for x
    x = 2,853,486.28/2,173.84
  6. Step 6: Final answer
    x = 1,312.65

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