Home / 2,422.44-3,342.72-1,427.76

Finding the Fourth Proportional to 2,422.44, 3,342.72 and 1,427.76

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Solution

The fourth proportional to 2,422.44, 3,342.72 and 1,427.76 is: 1,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.44 : 3,342.72 = 1,427.76 : x
  2. Step 2: Convert to fraction form
    2,422.44/3,342.72 = 1,427.76/x
  3. Step 3: Cross multiply
    2,422.44x = 3,342.72 × 1,427.76
  4. Step 4: Simplify right side
    2,422.44x = 4,772,601.91
  5. Step 5: Solve for x
    x = 4,772,601.91/2,422.44
  6. Step 6: Final answer
    x = 1,970.16

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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.