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Finding the Fourth Proportional to 2,985.84, 4,477.22 and 1,340.97

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Solution

The fourth proportional to 2,985.84, 4,477.22 and 1,340.97 is: 2,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.84 : 4,477.22 = 1,340.97 : x
  2. Step 2: Convert to fraction form
    2,985.84/4,477.22 = 1,340.97/x
  3. Step 3: Cross multiply
    2,985.84x = 4,477.22 × 1,340.97
  4. Step 4: Simplify right side
    2,985.84x = 6,003,817.70
  5. Step 5: Solve for x
    x = 6,003,817.70/2,985.84
  6. Step 6: Final answer
    x = 2,010.76

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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.