Home / 2,422.32-3,343.28-1,427.55

Finding the Fourth Proportional to 2,422.32, 3,343.28 and 1,427.55

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Solution

The fourth proportional to 2,422.32, 3,343.28 and 1,427.55 is: 1,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.32 : 3,343.28 = 1,427.55 : x
  2. Step 2: Convert to fraction form
    2,422.32/3,343.28 = 1,427.55/x
  3. Step 3: Cross multiply
    2,422.32x = 3,343.28 × 1,427.55
  4. Step 4: Simplify right side
    2,422.32x = 4,772,692.23
  5. Step 5: Solve for x
    x = 4,772,692.23/2,422.32
  6. Step 6: Final answer
    x = 1,970.30

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Half scale
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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.