Home / 3,727.60-5,142.39-2,310.91

Finding the Fourth Proportional to 3,727.60, 5,142.39 and 2,310.91

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Solution

The fourth proportional to 3,727.60, 5,142.39 and 2,310.91 is: 3,188.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.60 : 5,142.39 = 2,310.91 : x
  2. Step 2: Convert to fraction form
    3,727.60/5,142.39 = 2,310.91/x
  3. Step 3: Cross multiply
    3,727.60x = 5,142.39 × 2,310.91
  4. Step 4: Simplify right side
    3,727.60x = 11,883,574.76
  5. Step 5: Solve for x
    x = 11,883,574.76/3,727.60
  6. Step 6: Final answer
    x = 3,188.00

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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.