Home / 2,809.05-4,210.29-2,113.49

Finding the Fourth Proportional to 2,809.05, 4,210.29 and 2,113.49

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Solution

The fourth proportional to 2,809.05, 4,210.29 and 2,113.49 is: 3,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.05 : 4,210.29 = 2,113.49 : x
  2. Step 2: Convert to fraction form
    2,809.05/4,210.29 = 2,113.49/x
  3. Step 3: Cross multiply
    2,809.05x = 4,210.29 × 2,113.49
  4. Step 4: Simplify right side
    2,809.05x = 8,898,390.04
  5. Step 5: Solve for x
    x = 8,898,390.04/2,809.05
  6. Step 6: Final answer
    x = 3,167.76

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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.