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Finding the Fourth Proportional to 1,093.28, 1,508.66 and 651.10

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Solution

The fourth proportional to 1,093.28, 1,508.66 and 651.10 is: 898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.28 : 1,508.66 = 651.10 : x
  2. Step 2: Convert to fraction form
    1,093.28/1,508.66 = 651.10/x
  3. Step 3: Cross multiply
    1,093.28x = 1,508.66 × 651.10
  4. Step 4: Simplify right side
    1,093.28x = 982,288.53
  5. Step 5: Solve for x
    x = 982,288.53/1,093.28
  6. Step 6: Final answer
    x = 898.48

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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.