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Finding the Fourth Proportional to 2,053.44, 3,078.01 and 956.90

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Solution

The fourth proportional to 2,053.44, 3,078.01 and 956.90 is: 1,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.44 : 3,078.01 = 956.90 : x
  2. Step 2: Convert to fraction form
    2,053.44/3,078.01 = 956.90/x
  3. Step 3: Cross multiply
    2,053.44x = 3,078.01 × 956.90
  4. Step 4: Simplify right side
    2,053.44x = 2,945,347.77
  5. Step 5: Solve for x
    x = 2,945,347.77/2,053.44
  6. Step 6: Final answer
    x = 1,434.35

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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.