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Finding the Fourth Proportional to 1,937.72, 2,904.86 and 704.90

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Solution

The fourth proportional to 1,937.72, 2,904.86 and 704.90 is: 1,056.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.72 : 2,904.86 = 704.90 : x
  2. Step 2: Convert to fraction form
    1,937.72/2,904.86 = 704.90/x
  3. Step 3: Cross multiply
    1,937.72x = 2,904.86 × 704.90
  4. Step 4: Simplify right side
    1,937.72x = 2,047,644.84
  5. Step 5: Solve for x
    x = 2,047,644.84/1,937.72
  6. Step 6: Final answer
    x = 1,056.73

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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.