Home / 3,360.28-5,040.09-1,020.30

Finding the Fourth Proportional to 3,360.28, 5,040.09 and 1,020.30

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Solution

The fourth proportional to 3,360.28, 5,040.09 and 1,020.30 is: 1,530.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.28 : 5,040.09 = 1,020.30 : x
  2. Step 2: Convert to fraction form
    3,360.28/5,040.09 = 1,020.30/x
  3. Step 3: Cross multiply
    3,360.28x = 5,040.09 × 1,020.30
  4. Step 4: Simplify right side
    3,360.28x = 5,142,431.25
  5. Step 5: Solve for x
    x = 5,142,431.25/3,360.28
  6. Step 6: Final answer
    x = 1,530.36

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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.