Home / 4,538.40-6,807.60-3,436.80

Finding the Fourth Proportional to 4,538.40, 6,807.60 and 3,436.80

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Solution

The fourth proportional to 4,538.40, 6,807.60 and 3,436.80 is: 5,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,538.40 : 6,807.60 = 3,436.80 : x
  2. Step 2: Convert to fraction form
    4,538.40/6,807.60 = 3,436.80/x
  3. Step 3: Cross multiply
    4,538.40x = 6,807.60 × 3,436.80
  4. Step 4: Simplify right side
    4,538.40x = 23,396,359.68
  5. Step 5: Solve for x
    x = 23,396,359.68/4,538.40
  6. Step 6: Final answer
    x = 5,155.20

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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.