Home / 2,261.57-3,122.82-1,423.62

Finding the Fourth Proportional to 2,261.57, 3,122.82 and 1,423.62

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Solution

The fourth proportional to 2,261.57, 3,122.82 and 1,423.62 is: 1,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.57 : 3,122.82 = 1,423.62 : x
  2. Step 2: Convert to fraction form
    2,261.57/3,122.82 = 1,423.62/x
  3. Step 3: Cross multiply
    2,261.57x = 3,122.82 × 1,423.62
  4. Step 4: Simplify right side
    2,261.57x = 4,445,709.01
  5. Step 5: Solve for x
    x = 4,445,709.01/2,261.57
  6. Step 6: Final answer
    x = 1,965.77

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Half scale
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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.