Home / 5,311.20-7,966.80-3,365.60

Finding the Fourth Proportional to 5,311.20, 7,966.80 and 3,365.60

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Solution

The fourth proportional to 5,311.20, 7,966.80 and 3,365.60 is: 5,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.20 : 7,966.80 = 3,365.60 : x
  2. Step 2: Convert to fraction form
    5,311.20/7,966.80 = 3,365.60/x
  3. Step 3: Cross multiply
    5,311.20x = 7,966.80 × 3,365.60
  4. Step 4: Simplify right side
    5,311.20x = 26,813,062.08
  5. Step 5: Solve for x
    x = 26,813,062.08/5,311.20
  6. Step 6: Final answer
    x = 5,048.40

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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.