Home / 2,915.53-4,371.69-1,992.13

Finding the Fourth Proportional to 2,915.53, 4,371.69 and 1,992.13

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Solution

The fourth proportional to 2,915.53, 4,371.69 and 1,992.13 is: 2,987.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.53 : 4,371.69 = 1,992.13 : x
  2. Step 2: Convert to fraction form
    2,915.53/4,371.69 = 1,992.13/x
  3. Step 3: Cross multiply
    2,915.53x = 4,371.69 × 1,992.13
  4. Step 4: Simplify right side
    2,915.53x = 8,708,942.98
  5. Step 5: Solve for x
    x = 8,708,942.98/2,915.53
  6. Step 6: Final answer
    x = 2,987.09

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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.