Home / 2,422.88-3,630.36-1,555.28

Finding the Fourth Proportional to 2,422.88, 3,630.36 and 1,555.28

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Solution

The fourth proportional to 2,422.88, 3,630.36 and 1,555.28 is: 2,330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.88 : 3,630.36 = 1,555.28 : x
  2. Step 2: Convert to fraction form
    2,422.88/3,630.36 = 1,555.28/x
  3. Step 3: Cross multiply
    2,422.88x = 3,630.36 × 1,555.28
  4. Step 4: Simplify right side
    2,422.88x = 5,646,226.30
  5. Step 5: Solve for x
    x = 5,646,226.30/2,422.88
  6. Step 6: Final answer
    x = 2,330.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.