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Finding the Fourth Proportional to 1,093.42, 1,508.69 and 651.46

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Solution

The fourth proportional to 1,093.42, 1,508.69 and 651.46 is: 898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.42 : 1,508.69 = 651.46 : x
  2. Step 2: Convert to fraction form
    1,093.42/1,508.69 = 651.46/x
  3. Step 3: Cross multiply
    1,093.42x = 1,508.69 × 651.46
  4. Step 4: Simplify right side
    1,093.42x = 982,851.19
  5. Step 5: Solve for x
    x = 982,851.19/1,093.42
  6. Step 6: Final answer
    x = 898.88

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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.