Home / 3,530.72-5,296.58-1,191.40

Finding the Fourth Proportional to 3,530.72, 5,296.58 and 1,191.40

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Solution

The fourth proportional to 3,530.72, 5,296.58 and 1,191.40 is: 1,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.72 : 5,296.58 = 1,191.40 : x
  2. Step 2: Convert to fraction form
    3,530.72/5,296.58 = 1,191.40/x
  3. Step 3: Cross multiply
    3,530.72x = 5,296.58 × 1,191.40
  4. Step 4: Simplify right side
    3,530.72x = 6,310,326.21
  5. Step 5: Solve for x
    x = 6,310,326.21/3,530.72
  6. Step 6: Final answer
    x = 1,787.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.