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Finding the Fourth Proportional to 1,977.78, 2,964.24 and 1,053.30

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Solution

The fourth proportional to 1,977.78, 2,964.24 and 1,053.30 is: 1,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.78 : 2,964.24 = 1,053.30 : x
  2. Step 2: Convert to fraction form
    1,977.78/2,964.24 = 1,053.30/x
  3. Step 3: Cross multiply
    1,977.78x = 2,964.24 × 1,053.30
  4. Step 4: Simplify right side
    1,977.78x = 3,122,233.99
  5. Step 5: Solve for x
    x = 3,122,233.99/1,977.78
  6. Step 6: Final answer
    x = 1,578.66

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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.