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Finding the Fourth Proportional to 5,579.29, 7,700.49 and 3,690.94

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Solution

The fourth proportional to 5,579.29, 7,700.49 and 3,690.94 is: 5,094.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.29 : 7,700.49 = 3,690.94 : x
  2. Step 2: Convert to fraction form
    5,579.29/7,700.49 = 3,690.94/x
  3. Step 3: Cross multiply
    5,579.29x = 7,700.49 × 3,690.94
  4. Step 4: Simplify right side
    5,579.29x = 28,422,046.56
  5. Step 5: Solve for x
    x = 28,422,046.56/5,579.29
  6. Step 6: Final answer
    x = 5,094.20

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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.