Home / 3,890.56-5,825.40-2,426.80

Finding the Fourth Proportional to 3,890.56, 5,825.40 and 2,426.80

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Solution

The fourth proportional to 3,890.56, 5,825.40 and 2,426.80 is: 3,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.56 : 5,825.40 = 2,426.80 : x
  2. Step 2: Convert to fraction form
    3,890.56/5,825.40 = 2,426.80/x
  3. Step 3: Cross multiply
    3,890.56x = 5,825.40 × 2,426.80
  4. Step 4: Simplify right side
    3,890.56x = 14,137,080.72
  5. Step 5: Solve for x
    x = 14,137,080.72/3,890.56
  6. Step 6: Final answer
    x = 3,633.69

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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.