Home / 1,440.14-1,986.80-1,068.03

Finding the Fourth Proportional to 1,440.14, 1,986.80 and 1,068.03

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Solution

The fourth proportional to 1,440.14, 1,986.80 and 1,068.03 is: 1,473.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.14 : 1,986.80 = 1,068.03 : x
  2. Step 2: Convert to fraction form
    1,440.14/1,986.80 = 1,068.03/x
  3. Step 3: Cross multiply
    1,440.14x = 1,986.80 × 1,068.03
  4. Step 4: Simplify right side
    1,440.14x = 2,121,956.66
  5. Step 5: Solve for x
    x = 2,121,956.66/1,440.14
  6. Step 6: Final answer
    x = 1,473.44

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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.