Home / 1,947.66-2,686.62-1,349.22

Finding the Fourth Proportional to 1,947.66, 2,686.62 and 1,349.22

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Solution

The fourth proportional to 1,947.66, 2,686.62 and 1,349.22 is: 1,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.66 : 2,686.62 = 1,349.22 : x
  2. Step 2: Convert to fraction form
    1,947.66/2,686.62 = 1,349.22/x
  3. Step 3: Cross multiply
    1,947.66x = 2,686.62 × 1,349.22
  4. Step 4: Simplify right side
    1,947.66x = 3,624,841.44
  5. Step 5: Solve for x
    x = 3,624,841.44/1,947.66
  6. Step 6: Final answer
    x = 1,861.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.