Home / 2,276.96-3,142.44-1,393.35

Finding the Fourth Proportional to 2,276.96, 3,142.44 and 1,393.35

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Solution

The fourth proportional to 2,276.96, 3,142.44 and 1,393.35 is: 1,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.96 : 3,142.44 = 1,393.35 : x
  2. Step 2: Convert to fraction form
    2,276.96/3,142.44 = 1,393.35/x
  3. Step 3: Cross multiply
    2,276.96x = 3,142.44 × 1,393.35
  4. Step 4: Simplify right side
    2,276.96x = 4,378,518.77
  5. Step 5: Solve for x
    x = 4,378,518.77/2,276.96
  6. Step 6: Final answer
    x = 1,922.97

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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.