Home / 6,280.36-9,420.72-3,505.48

Finding the Fourth Proportional to 6,280.36, 9,420.72 and 3,505.48

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Solution

The fourth proportional to 6,280.36, 9,420.72 and 3,505.48 is: 5,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.36 : 9,420.72 = 3,505.48 : x
  2. Step 2: Convert to fraction form
    6,280.36/9,420.72 = 3,505.48/x
  3. Step 3: Cross multiply
    6,280.36x = 9,420.72 × 3,505.48
  4. Step 4: Simplify right side
    6,280.36x = 33,024,145.55
  5. Step 5: Solve for x
    x = 33,024,145.55/6,280.36
  6. Step 6: Final answer
    x = 5,258.32

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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.