Home / 3,316.20-4,976.70-1,853.80

Finding the Fourth Proportional to 3,316.20, 4,976.70 and 1,853.80

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Solution

The fourth proportional to 3,316.20, 4,976.70 and 1,853.80 is: 2,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.20 : 4,976.70 = 1,853.80 : x
  2. Step 2: Convert to fraction form
    3,316.20/4,976.70 = 1,853.80/x
  3. Step 3: Cross multiply
    3,316.20x = 4,976.70 × 1,853.80
  4. Step 4: Simplify right side
    3,316.20x = 9,225,806.46
  5. Step 5: Solve for x
    x = 9,225,806.46/3,316.20
  6. Step 6: Final answer
    x = 2,782.04

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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.