Home / 1,211.75-1,815.87-594.76

Finding the Fourth Proportional to 1,211.75, 1,815.87 and 594.76

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Solution

The fourth proportional to 1,211.75, 1,815.87 and 594.76 is: 891.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.75 : 1,815.87 = 594.76 : x
  2. Step 2: Convert to fraction form
    1,211.75/1,815.87 = 594.76/x
  3. Step 3: Cross multiply
    1,211.75x = 1,815.87 × 594.76
  4. Step 4: Simplify right side
    1,211.75x = 1,080,006.84
  5. Step 5: Solve for x
    x = 1,080,006.84/1,211.75
  6. Step 6: Final answer
    x = 891.28

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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.