Home / 4,855.40-7,268.70-2,911.40

Finding the Fourth Proportional to 4,855.40, 7,268.70 and 2,911.40

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Solution

The fourth proportional to 4,855.40, 7,268.70 and 2,911.40 is: 4,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.40 : 7,268.70 = 2,911.40 : x
  2. Step 2: Convert to fraction form
    4,855.40/7,268.70 = 2,911.40/x
  3. Step 3: Cross multiply
    4,855.40x = 7,268.70 × 2,911.40
  4. Step 4: Simplify right side
    4,855.40x = 21,162,093.18
  5. Step 5: Solve for x
    x = 21,162,093.18/4,855.40
  6. Step 6: Final answer
    x = 4,358.47

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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.