Home / 1,177.34-1,621.01-1,067.99

Finding the Fourth Proportional to 1,177.34, 1,621.01 and 1,067.99

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Solution

The fourth proportional to 1,177.34, 1,621.01 and 1,067.99 is: 1,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.34 : 1,621.01 = 1,067.99 : x
  2. Step 2: Convert to fraction form
    1,177.34/1,621.01 = 1,067.99/x
  3. Step 3: Cross multiply
    1,177.34x = 1,621.01 × 1,067.99
  4. Step 4: Simplify right side
    1,177.34x = 1,731,217.03
  5. Step 5: Solve for x
    x = 1,731,217.03/1,177.34
  6. Step 6: Final answer
    x = 1,470.45

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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.