Home / 2,193.30-3,290.22-712.35

Finding the Fourth Proportional to 2,193.30, 3,290.22 and 712.35

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Solution

The fourth proportional to 2,193.30, 3,290.22 and 712.35 is: 1,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.30 : 3,290.22 = 712.35 : x
  2. Step 2: Convert to fraction form
    2,193.30/3,290.22 = 712.35/x
  3. Step 3: Cross multiply
    2,193.30x = 3,290.22 × 712.35
  4. Step 4: Simplify right side
    2,193.30x = 2,343,788.22
  5. Step 5: Solve for x
    x = 2,343,788.22/2,193.30
  6. Step 6: Final answer
    x = 1,068.61

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Similar ratio
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1.5x scale

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.