Home / 2,158.48-3,233.40-2,155.60

Finding the Fourth Proportional to 2,158.48, 3,233.40 and 2,155.60

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Solution

The fourth proportional to 2,158.48, 3,233.40 and 2,155.60 is: 3,229.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.48 : 3,233.40 = 2,155.60 : x
  2. Step 2: Convert to fraction form
    2,158.48/3,233.40 = 2,155.60/x
  3. Step 3: Cross multiply
    2,158.48x = 3,233.40 × 2,155.60
  4. Step 4: Simplify right side
    2,158.48x = 6,969,917.04
  5. Step 5: Solve for x
    x = 6,969,917.04/2,158.48
  6. Step 6: Final answer
    x = 3,229.09

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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.