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Finding the Fourth Proportional to 1,872.32, 2,806.11 and 948.11

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Solution

The fourth proportional to 1,872.32, 2,806.11 and 948.11 is: 1,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.32 : 2,806.11 = 948.11 : x
  2. Step 2: Convert to fraction form
    1,872.32/2,806.11 = 948.11/x
  3. Step 3: Cross multiply
    1,872.32x = 2,806.11 × 948.11
  4. Step 4: Simplify right side
    1,872.32x = 2,660,486.92
  5. Step 5: Solve for x
    x = 2,660,486.92/1,872.32
  6. Step 6: Final answer
    x = 1,420.96

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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.