Home / 3,291.93-4,937.40-1,211.45

Finding the Fourth Proportional to 3,291.93, 4,937.40 and 1,211.45

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Solution

The fourth proportional to 3,291.93, 4,937.40 and 1,211.45 is: 1,816.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.93 : 4,937.40 = 1,211.45 : x
  2. Step 2: Convert to fraction form
    3,291.93/4,937.40 = 1,211.45/x
  3. Step 3: Cross multiply
    3,291.93x = 4,937.40 × 1,211.45
  4. Step 4: Simplify right side
    3,291.93x = 5,981,388.54
  5. Step 5: Solve for x
    x = 5,981,388.54/3,291.93
  6. Step 6: Final answer
    x = 1,816.99

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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.