Home / 2,287.08-3,432.78-2,145.60

Finding the Fourth Proportional to 2,287.08, 3,432.78 and 2,145.60

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Solution

The fourth proportional to 2,287.08, 3,432.78 and 2,145.60 is: 3,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.08 : 3,432.78 = 2,145.60 : x
  2. Step 2: Convert to fraction form
    2,287.08/3,432.78 = 2,145.60/x
  3. Step 3: Cross multiply
    2,287.08x = 3,432.78 × 2,145.60
  4. Step 4: Simplify right side
    2,287.08x = 7,365,372.77
  5. Step 5: Solve for x
    x = 7,365,372.77/2,287.08
  6. Step 6: Final answer
    x = 3,220.43

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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.