Home / 2,809.13-4,213.71-1,711.31

Finding the Fourth Proportional to 2,809.13, 4,213.71 and 1,711.31

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Solution

The fourth proportional to 2,809.13, 4,213.71 and 1,711.31 is: 2,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.13 : 4,213.71 = 1,711.31 : x
  2. Step 2: Convert to fraction form
    2,809.13/4,213.71 = 1,711.31/x
  3. Step 3: Cross multiply
    2,809.13x = 4,213.71 × 1,711.31
  4. Step 4: Simplify right side
    2,809.13x = 7,210,942.99
  5. Step 5: Solve for x
    x = 7,210,942.99/2,809.13
  6. Step 6: Final answer
    x = 2,566.97

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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.