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Finding the Fourth Proportional to 1,865.29, 2,798.07 and 632.83

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Solution

The fourth proportional to 1,865.29, 2,798.07 and 632.83 is: 949.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.29 : 2,798.07 = 632.83 : x
  2. Step 2: Convert to fraction form
    1,865.29/2,798.07 = 632.83/x
  3. Step 3: Cross multiply
    1,865.29x = 2,798.07 × 632.83
  4. Step 4: Simplify right side
    1,865.29x = 1,770,702.64
  5. Step 5: Solve for x
    x = 1,770,702.64/1,865.29
  6. Step 6: Final answer
    x = 949.29

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1.5x scale

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.