Home / 5,739.60-7,904.34-4,936.80

Finding the Fourth Proportional to 5,739.60, 7,904.34 and 4,936.80

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Solution

The fourth proportional to 5,739.60, 7,904.34 and 4,936.80 is: 6,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.60 : 7,904.34 = 4,936.80 : x
  2. Step 2: Convert to fraction form
    5,739.60/7,904.34 = 4,936.80/x
  3. Step 3: Cross multiply
    5,739.60x = 7,904.34 × 4,936.80
  4. Step 4: Simplify right side
    5,739.60x = 39,022,145.71
  5. Step 5: Solve for x
    x = 39,022,145.71/5,739.60
  6. Step 6: Final answer
    x = 6,798.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.