Home / 758.03-1,136.63-511.23

Finding the Fourth Proportional to 758.03, 1,136.63 and 511.23

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Solution

The fourth proportional to 758.03, 1,136.63 and 511.23 is: 766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.03 : 1,136.63 = 511.23 : x
  2. Step 2: Convert to fraction form
    758.03/1,136.63 = 511.23/x
  3. Step 3: Cross multiply
    758.03x = 1,136.63 × 511.23
  4. Step 4: Simplify right side
    758.03x = 581,084.90
  5. Step 5: Solve for x
    x = 581,084.90/758.03
  6. Step 6: Final answer
    x = 766.57

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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.