Home / 4,915.99-7,363.25-3,987.22

Finding the Fourth Proportional to 4,915.99, 7,363.25 and 3,987.22

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Solution

The fourth proportional to 4,915.99, 7,363.25 and 3,987.22 is: 5,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.99 : 7,363.25 = 3,987.22 : x
  2. Step 2: Convert to fraction form
    4,915.99/7,363.25 = 3,987.22/x
  3. Step 3: Cross multiply
    4,915.99x = 7,363.25 × 3,987.22
  4. Step 4: Simplify right side
    4,915.99x = 29,358,877.73
  5. Step 5: Solve for x
    x = 29,358,877.73/4,915.99
  6. Step 6: Final answer
    x = 5,972.13

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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.