Home / 1,084.21-1,496.34-691.77

Finding the Fourth Proportional to 1,084.21, 1,496.34 and 691.77

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Solution

The fourth proportional to 1,084.21, 1,496.34 and 691.77 is: 954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.21 : 1,496.34 = 691.77 : x
  2. Step 2: Convert to fraction form
    1,084.21/1,496.34 = 691.77/x
  3. Step 3: Cross multiply
    1,084.21x = 1,496.34 × 691.77
  4. Step 4: Simplify right side
    1,084.21x = 1,035,115.64
  5. Step 5: Solve for x
    x = 1,035,115.64/1,084.21
  6. Step 6: Final answer
    x = 954.72

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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.