Home / 2,262.08-3,122.62-1,378.20

Finding the Fourth Proportional to 2,262.08, 3,122.62 and 1,378.20

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Solution

The fourth proportional to 2,262.08, 3,122.62 and 1,378.20 is: 1,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.08 : 3,122.62 = 1,378.20 : x
  2. Step 2: Convert to fraction form
    2,262.08/3,122.62 = 1,378.20/x
  3. Step 3: Cross multiply
    2,262.08x = 3,122.62 × 1,378.20
  4. Step 4: Simplify right side
    2,262.08x = 4,303,594.88
  5. Step 5: Solve for x
    x = 4,303,594.88/2,262.08
  6. Step 6: Final answer
    x = 1,902.49

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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.