Home / 2,263.62-3,122.64-1,378.74

Finding the Fourth Proportional to 2,263.62, 3,122.64 and 1,378.74

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Solution

The fourth proportional to 2,263.62, 3,122.64 and 1,378.74 is: 1,901.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.62 : 3,122.64 = 1,378.74 : x
  2. Step 2: Convert to fraction form
    2,263.62/3,122.64 = 1,378.74/x
  3. Step 3: Cross multiply
    2,263.62x = 3,122.64 × 1,378.74
  4. Step 4: Simplify right side
    2,263.62x = 4,305,308.67
  5. Step 5: Solve for x
    x = 4,305,308.67/2,263.62
  6. Step 6: Final answer
    x = 1,901.96

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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.