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Finding the Fourth Proportional to 5,579.84, 7,700.15 and 3,061.88

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Solution

The fourth proportional to 5,579.84, 7,700.15 and 3,061.88 is: 4,225.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.84 : 7,700.15 = 3,061.88 : x
  2. Step 2: Convert to fraction form
    5,579.84/7,700.15 = 3,061.88/x
  3. Step 3: Cross multiply
    5,579.84x = 7,700.15 × 3,061.88
  4. Step 4: Simplify right side
    5,579.84x = 23,576,881.47
  5. Step 5: Solve for x
    x = 23,576,881.47/5,579.84
  6. Step 6: Final answer
    x = 4,225.37

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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.