Home / 2,784.80-4,177.33-704.81

Finding the Fourth Proportional to 2,784.80, 4,177.33 and 704.81

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Solution

The fourth proportional to 2,784.80, 4,177.33 and 704.81 is: 1,057.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.80 : 4,177.33 = 704.81 : x
  2. Step 2: Convert to fraction form
    2,784.80/4,177.33 = 704.81/x
  3. Step 3: Cross multiply
    2,784.80x = 4,177.33 × 704.81
  4. Step 4: Simplify right side
    2,784.80x = 2,944,232.64
  5. Step 5: Solve for x
    x = 2,944,232.64/2,784.80
  6. Step 6: Final answer
    x = 1,057.25

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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.