Home / 2,585.62-3,878.43-1,025.98

Finding the Fourth Proportional to 2,585.62, 3,878.43 and 1,025.98

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Solution

The fourth proportional to 2,585.62, 3,878.43 and 1,025.98 is: 1,538.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.62 : 3,878.43 = 1,025.98 : x
  2. Step 2: Convert to fraction form
    2,585.62/3,878.43 = 1,025.98/x
  3. Step 3: Cross multiply
    2,585.62x = 3,878.43 × 1,025.98
  4. Step 4: Simplify right side
    2,585.62x = 3,979,191.61
  5. Step 5: Solve for x
    x = 3,979,191.61/2,585.62
  6. Step 6: Final answer
    x = 1,538.97

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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.