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Finding the Fourth Proportional to 1,883.07, 2,824.68 and 712.95

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Solution

The fourth proportional to 1,883.07, 2,824.68 and 712.95 is: 1,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.07 : 2,824.68 = 712.95 : x
  2. Step 2: Convert to fraction form
    1,883.07/2,824.68 = 712.95/x
  3. Step 3: Cross multiply
    1,883.07x = 2,824.68 × 712.95
  4. Step 4: Simplify right side
    1,883.07x = 2,013,855.61
  5. Step 5: Solve for x
    x = 2,013,855.61/1,883.07
  6. Step 6: Final answer
    x = 1,069.45

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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.