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Finding the Fourth Proportional to 1,950.63, 2,691.68 and 1,111.38

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Solution

The fourth proportional to 1,950.63, 2,691.68 and 1,111.38 is: 1,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.63 : 2,691.68 = 1,111.38 : x
  2. Step 2: Convert to fraction form
    1,950.63/2,691.68 = 1,111.38/x
  3. Step 3: Cross multiply
    1,950.63x = 2,691.68 × 1,111.38
  4. Step 4: Simplify right side
    1,950.63x = 2,991,479.32
  5. Step 5: Solve for x
    x = 2,991,479.32/1,950.63
  6. Step 6: Final answer
    x = 1,533.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.