Home / 2,209.36-3,042.24-2,160.76

Finding the Fourth Proportional to 2,209.36, 3,042.24 and 2,160.76

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Solution

The fourth proportional to 2,209.36, 3,042.24 and 2,160.76 is: 2,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.36 : 3,042.24 = 2,160.76 : x
  2. Step 2: Convert to fraction form
    2,209.36/3,042.24 = 2,160.76/x
  3. Step 3: Cross multiply
    2,209.36x = 3,042.24 × 2,160.76
  4. Step 4: Simplify right side
    2,209.36x = 6,573,550.50
  5. Step 5: Solve for x
    x = 6,573,550.50/2,209.36
  6. Step 6: Final answer
    x = 2,975.32

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Half scale
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Double scale
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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.