Home / 5,492.45-7,579-3,102.21

Finding the Fourth Proportional to 5,492.45, 7,579 and 3,102.21

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Solution

The fourth proportional to 5,492.45, 7,579 and 3,102.21 is: 4,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,492.45 : 7,579 = 3,102.21 : x
  2. Step 2: Convert to fraction form
    5,492.45/7,579 = 3,102.21/x
  3. Step 3: Cross multiply
    5,492.45x = 7,579 × 3,102.21
  4. Step 4: Simplify right side
    5,492.45x = 23,511,649.59
  5. Step 5: Solve for x
    x = 23,511,649.59/5,492.45
  6. Step 6: Final answer
    x = 4,280.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.