Home / 2,193.54-3,290.34-1,225.80

Finding the Fourth Proportional to 2,193.54, 3,290.34 and 1,225.80

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Solution

The fourth proportional to 2,193.54, 3,290.34 and 1,225.80 is: 1,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.54 : 3,290.34 = 1,225.80 : x
  2. Step 2: Convert to fraction form
    2,193.54/3,290.34 = 1,225.80/x
  3. Step 3: Cross multiply
    2,193.54x = 3,290.34 × 1,225.80
  4. Step 4: Simplify right side
    2,193.54x = 4,033,298.77
  5. Step 5: Solve for x
    x = 4,033,298.77/2,193.54
  6. Step 6: Final answer
    x = 1,838.72

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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.