Home / 5,136.75-7,705.13-2,943.99

Finding the Fourth Proportional to 5,136.75, 7,705.13 and 2,943.99

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Solution

The fourth proportional to 5,136.75, 7,705.13 and 2,943.99 is: 4,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.75 : 7,705.13 = 2,943.99 : x
  2. Step 2: Convert to fraction form
    5,136.75/7,705.13 = 2,943.99/x
  3. Step 3: Cross multiply
    5,136.75x = 7,705.13 × 2,943.99
  4. Step 4: Simplify right side
    5,136.75x = 22,683,810.95
  5. Step 5: Solve for x
    x = 22,683,810.95/5,136.75
  6. Step 6: Final answer
    x = 4,415.99

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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.