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Finding the Fourth Proportional to 1,920.63, 2,882.95 and 1,702.65

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Solution

The fourth proportional to 1,920.63, 2,882.95 and 1,702.65 is: 2,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.63 : 2,882.95 = 1,702.65 : x
  2. Step 2: Convert to fraction form
    1,920.63/2,882.95 = 1,702.65/x
  3. Step 3: Cross multiply
    1,920.63x = 2,882.95 × 1,702.65
  4. Step 4: Simplify right side
    1,920.63x = 4,908,650.56
  5. Step 5: Solve for x
    x = 4,908,650.56/1,920.63
  6. Step 6: Final answer
    x = 2,555.75

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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.