Home / 1,191.30-1,782.63-1,006.62

Finding the Fourth Proportional to 1,191.30, 1,782.63 and 1,006.62

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Solution

The fourth proportional to 1,191.30, 1,782.63 and 1,006.62 is: 1,506.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.30 : 1,782.63 = 1,006.62 : x
  2. Step 2: Convert to fraction form
    1,191.30/1,782.63 = 1,006.62/x
  3. Step 3: Cross multiply
    1,191.30x = 1,782.63 × 1,006.62
  4. Step 4: Simplify right side
    1,191.30x = 1,794,431.01
  5. Step 5: Solve for x
    x = 1,794,431.01/1,191.30
  6. Step 6: Final answer
    x = 1,506.28

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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.