Home / 1,081.11-1,622.27-503.98

Finding the Fourth Proportional to 1,081.11, 1,622.27 and 503.98

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Solution

The fourth proportional to 1,081.11, 1,622.27 and 503.98 is: 756.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.11 : 1,622.27 = 503.98 : x
  2. Step 2: Convert to fraction form
    1,081.11/1,622.27 = 503.98/x
  3. Step 3: Cross multiply
    1,081.11x = 1,622.27 × 503.98
  4. Step 4: Simplify right side
    1,081.11x = 817,591.63
  5. Step 5: Solve for x
    x = 817,591.63/1,081.11
  6. Step 6: Final answer
    x = 756.25

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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.