Home / 1,885.98-2,823.66-1,422.29

Finding the Fourth Proportional to 1,885.98, 2,823.66 and 1,422.29

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Solution

The fourth proportional to 1,885.98, 2,823.66 and 1,422.29 is: 2,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.98 : 2,823.66 = 1,422.29 : x
  2. Step 2: Convert to fraction form
    1,885.98/2,823.66 = 1,422.29/x
  3. Step 3: Cross multiply
    1,885.98x = 2,823.66 × 1,422.29
  4. Step 4: Simplify right side
    1,885.98x = 4,016,070.44
  5. Step 5: Solve for x
    x = 4,016,070.44/1,885.98
  6. Step 6: Final answer
    x = 2,129.43

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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.