Home / 3,313.81-4,573.11-1,821.88

Finding the Fourth Proportional to 3,313.81, 4,573.11 and 1,821.88

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Solution

The fourth proportional to 3,313.81, 4,573.11 and 1,821.88 is: 2,514.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.81 : 4,573.11 = 1,821.88 : x
  2. Step 2: Convert to fraction form
    3,313.81/4,573.11 = 1,821.88/x
  3. Step 3: Cross multiply
    3,313.81x = 4,573.11 × 1,821.88
  4. Step 4: Simplify right side
    3,313.81x = 8,331,657.65
  5. Step 5: Solve for x
    x = 8,331,657.65/3,313.81
  6. Step 6: Final answer
    x = 2,514.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.