Home / 2,263.32-3,122.45-1,378.80

Finding the Fourth Proportional to 2,263.32, 3,122.45 and 1,378.80

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Solution

The fourth proportional to 2,263.32, 3,122.45 and 1,378.80 is: 1,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.32 : 3,122.45 = 1,378.80 : x
  2. Step 2: Convert to fraction form
    2,263.32/3,122.45 = 1,378.80/x
  3. Step 3: Cross multiply
    2,263.32x = 3,122.45 × 1,378.80
  4. Step 4: Simplify right side
    2,263.32x = 4,305,232.34
  5. Step 5: Solve for x
    x = 4,305,232.34/2,263.32
  6. Step 6: Final answer
    x = 1,902.18

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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.