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Finding the Fourth Proportional to 1,803.86, 2,706.47 and 633.95

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Solution

The fourth proportional to 1,803.86, 2,706.47 and 633.95 is: 951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.86 : 2,706.47 = 633.95 : x
  2. Step 2: Convert to fraction form
    1,803.86/2,706.47 = 633.95/x
  3. Step 3: Cross multiply
    1,803.86x = 2,706.47 × 633.95
  4. Step 4: Simplify right side
    1,803.86x = 1,715,766.66
  5. Step 5: Solve for x
    x = 1,715,766.66/1,803.86
  6. Step 6: Final answer
    x = 951.16

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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.