Home / 5,217.99-7,820.91-1,927.77

Finding the Fourth Proportional to 5,217.99, 7,820.91 and 1,927.77

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Solution

The fourth proportional to 5,217.99, 7,820.91 and 1,927.77 is: 2,889.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.99 : 7,820.91 = 1,927.77 : x
  2. Step 2: Convert to fraction form
    5,217.99/7,820.91 = 1,927.77/x
  3. Step 3: Cross multiply
    5,217.99x = 7,820.91 × 1,927.77
  4. Step 4: Simplify right side
    5,217.99x = 15,076,915.67
  5. Step 5: Solve for x
    x = 15,076,915.67/5,217.99
  6. Step 6: Final answer
    x = 2,889.41

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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.