Home / 2,209.20-3,048.76-1,214.51

Finding the Fourth Proportional to 2,209.20, 3,048.76 and 1,214.51

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Solution

The fourth proportional to 2,209.20, 3,048.76 and 1,214.51 is: 1,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.20 : 3,048.76 = 1,214.51 : x
  2. Step 2: Convert to fraction form
    2,209.20/3,048.76 = 1,214.51/x
  3. Step 3: Cross multiply
    2,209.20x = 3,048.76 × 1,214.51
  4. Step 4: Simplify right side
    2,209.20x = 3,702,739.22
  5. Step 5: Solve for x
    x = 3,702,739.22/2,209.20
  6. Step 6: Final answer
    x = 1,676.05

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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.