Home / 4,843.40-7,265.36-1,380.38

Finding the Fourth Proportional to 4,843.40, 7,265.36 and 1,380.38

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Solution

The fourth proportional to 4,843.40, 7,265.36 and 1,380.38 is: 2,070.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,843.40 : 7,265.36 = 1,380.38 : x
  2. Step 2: Convert to fraction form
    4,843.40/7,265.36 = 1,380.38/x
  3. Step 3: Cross multiply
    4,843.40x = 7,265.36 × 1,380.38
  4. Step 4: Simplify right side
    4,843.40x = 10,028,924.76
  5. Step 5: Solve for x
    x = 10,028,924.76/4,843.40
  6. Step 6: Final answer
    x = 2,070.64

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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.