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Finding the Fourth Proportional to 1,950.60, 2,691.84 and 1,111.32

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Solution

The fourth proportional to 1,950.60, 2,691.84 and 1,111.32 is: 1,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.60 : 2,691.84 = 1,111.32 : x
  2. Step 2: Convert to fraction form
    1,950.60/2,691.84 = 1,111.32/x
  3. Step 3: Cross multiply
    1,950.60x = 2,691.84 × 1,111.32
  4. Step 4: Simplify right side
    1,950.60x = 2,991,495.63
  5. Step 5: Solve for x
    x = 2,991,495.63/1,950.60
  6. Step 6: Final answer
    x = 1,533.63

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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.