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Finding the Fourth Proportional to 2,952.95, 4,428.95 and 1,920.29

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Solution

The fourth proportional to 2,952.95, 4,428.95 and 1,920.29 is: 2,880.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,952.95 : 4,428.95 = 1,920.29 : x
  2. Step 2: Convert to fraction form
    2,952.95/4,428.95 = 1,920.29/x
  3. Step 3: Cross multiply
    2,952.95x = 4,428.95 × 1,920.29
  4. Step 4: Simplify right side
    2,952.95x = 8,504,836.65
  5. Step 5: Solve for x
    x = 8,504,836.65/2,952.95
  6. Step 6: Final answer
    x = 2,880.12

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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.