Home / 3,089.70-4,634.55-2,117.70

Finding the Fourth Proportional to 3,089.70, 4,634.55 and 2,117.70

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Solution

The fourth proportional to 3,089.70, 4,634.55 and 2,117.70 is: 3,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.70 : 4,634.55 = 2,117.70 : x
  2. Step 2: Convert to fraction form
    3,089.70/4,634.55 = 2,117.70/x
  3. Step 3: Cross multiply
    3,089.70x = 4,634.55 × 2,117.70
  4. Step 4: Simplify right side
    3,089.70x = 9,814,586.54
  5. Step 5: Solve for x
    x = 9,814,586.54/3,089.70
  6. Step 6: Final answer
    x = 3,176.55

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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.