Home / 2,209.16-3,313.74-1,114.45

Finding the Fourth Proportional to 2,209.16, 3,313.74 and 1,114.45

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Solution

The fourth proportional to 2,209.16, 3,313.74 and 1,114.45 is: 1,671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.16 : 3,313.74 = 1,114.45 : x
  2. Step 2: Convert to fraction form
    2,209.16/3,313.74 = 1,114.45/x
  3. Step 3: Cross multiply
    2,209.16x = 3,313.74 × 1,114.45
  4. Step 4: Simplify right side
    2,209.16x = 3,692,997.54
  5. Step 5: Solve for x
    x = 3,692,997.54/2,209.16
  6. Step 6: Final answer
    x = 1,671.68

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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.