Home / 1,937.40-2,905.96-704.20

Finding the Fourth Proportional to 1,937.40, 2,905.96 and 704.20

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Solution

The fourth proportional to 1,937.40, 2,905.96 and 704.20 is: 1,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.40 : 2,905.96 = 704.20 : x
  2. Step 2: Convert to fraction form
    1,937.40/2,905.96 = 704.20/x
  3. Step 3: Cross multiply
    1,937.40x = 2,905.96 × 704.20
  4. Step 4: Simplify right side
    1,937.40x = 2,046,377.03
  5. Step 5: Solve for x
    x = 2,046,377.03/1,937.40
  6. Step 6: Final answer
    x = 1,056.25

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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.