Home / 2,293.79-3,165.41-1,245.85

Finding the Fourth Proportional to 2,293.79, 3,165.41 and 1,245.85

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Solution

The fourth proportional to 2,293.79, 3,165.41 and 1,245.85 is: 1,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,293.79 : 3,165.41 = 1,245.85 : x
  2. Step 2: Convert to fraction form
    2,293.79/3,165.41 = 1,245.85/x
  3. Step 3: Cross multiply
    2,293.79x = 3,165.41 × 1,245.85
  4. Step 4: Simplify right side
    2,293.79x = 3,943,611.91
  5. Step 5: Solve for x
    x = 3,943,611.91/2,293.79
  6. Step 6: Final answer
    x = 1,719.26

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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.