Home / 7,485.28-11,230.50-3,328.20

Finding the Fourth Proportional to 7,485.28, 11,230.50 and 3,328.20

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Solution

The fourth proportional to 7,485.28, 11,230.50 and 3,328.20 is: 4,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.28 : 11,230.50 = 3,328.20 : x
  2. Step 2: Convert to fraction form
    7,485.28/11,230.50 = 3,328.20/x
  3. Step 3: Cross multiply
    7,485.28x = 11,230.50 × 3,328.20
  4. Step 4: Simplify right side
    7,485.28x = 37,377,350.10
  5. Step 5: Solve for x
    x = 37,377,350.10/7,485.28
  6. Step 6: Final answer
    x = 4,993.45

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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.