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Finding the Fourth Proportional to 1,897.13, 2,841.98 and 969.95

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Solution

The fourth proportional to 1,897.13, 2,841.98 and 969.95 is: 1,453.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.13 : 2,841.98 = 969.95 : x
  2. Step 2: Convert to fraction form
    1,897.13/2,841.98 = 969.95/x
  3. Step 3: Cross multiply
    1,897.13x = 2,841.98 × 969.95
  4. Step 4: Simplify right side
    1,897.13x = 2,756,559.44
  5. Step 5: Solve for x
    x = 2,756,559.44/1,897.13
  6. Step 6: Final answer
    x = 1,453.02

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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.