Home / 3,520.14-5,280.21-2,290.56

Finding the Fourth Proportional to 3,520.14, 5,280.21 and 2,290.56

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Solution

The fourth proportional to 3,520.14, 5,280.21 and 2,290.56 is: 3,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.14 : 5,280.21 = 2,290.56 : x
  2. Step 2: Convert to fraction form
    3,520.14/5,280.21 = 2,290.56/x
  3. Step 3: Cross multiply
    3,520.14x = 5,280.21 × 2,290.56
  4. Step 4: Simplify right side
    3,520.14x = 12,094,637.82
  5. Step 5: Solve for x
    x = 12,094,637.82/3,520.14
  6. Step 6: Final answer
    x = 3,435.84

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Double scale
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Similar ratio
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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.