Home / 4,538.80-6,815.40-3,314.80

Finding the Fourth Proportional to 4,538.80, 6,815.40 and 3,314.80

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Solution

The fourth proportional to 4,538.80, 6,815.40 and 3,314.80 is: 4,977.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,538.80 : 6,815.40 = 3,314.80 : x
  2. Step 2: Convert to fraction form
    4,538.80/6,815.40 = 3,314.80/x
  3. Step 3: Cross multiply
    4,538.80x = 6,815.40 × 3,314.80
  4. Step 4: Simplify right side
    4,538.80x = 22,591,687.92
  5. Step 5: Solve for x
    x = 22,591,687.92/4,538.80
  6. Step 6: Final answer
    x = 4,977.46

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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.