Home / 1,247.82-1,873.07-1,055.18

Finding the Fourth Proportional to 1,247.82, 1,873.07 and 1,055.18

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Solution

The fourth proportional to 1,247.82, 1,873.07 and 1,055.18 is: 1,583.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.82 : 1,873.07 = 1,055.18 : x
  2. Step 2: Convert to fraction form
    1,247.82/1,873.07 = 1,055.18/x
  3. Step 3: Cross multiply
    1,247.82x = 1,873.07 × 1,055.18
  4. Step 4: Simplify right side
    1,247.82x = 1,976,411.36
  5. Step 5: Solve for x
    x = 1,976,411.36/1,247.82
  6. Step 6: Final answer
    x = 1,583.89

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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.