Home / 3,360.54-5,040.81-1,281.09

Finding the Fourth Proportional to 3,360.54, 5,040.81 and 1,281.09

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Solution

The fourth proportional to 3,360.54, 5,040.81 and 1,281.09 is: 1,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.54 : 5,040.81 = 1,281.09 : x
  2. Step 2: Convert to fraction form
    3,360.54/5,040.81 = 1,281.09/x
  3. Step 3: Cross multiply
    3,360.54x = 5,040.81 × 1,281.09
  4. Step 4: Simplify right side
    3,360.54x = 6,457,731.28
  5. Step 5: Solve for x
    x = 6,457,731.28/3,360.54
  6. Step 6: Final answer
    x = 1,921.64

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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.