Home / 5,136.72-7,690.50-3,283.25

Finding the Fourth Proportional to 5,136.72, 7,690.50 and 3,283.25

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Solution

The fourth proportional to 5,136.72, 7,690.50 and 3,283.25 is: 4,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.72 : 7,690.50 = 3,283.25 : x
  2. Step 2: Convert to fraction form
    5,136.72/7,690.50 = 3,283.25/x
  3. Step 3: Cross multiply
    5,136.72x = 7,690.50 × 3,283.25
  4. Step 4: Simplify right side
    5,136.72x = 25,249,795.67
  5. Step 5: Solve for x
    x = 25,249,795.67/5,136.72
  6. Step 6: Final answer
    x = 4,915.55

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1.5x scale

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.