Home / 2,885.12-4,325.24-1,422.28

Finding the Fourth Proportional to 2,885.12, 4,325.24 and 1,422.28

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Solution

The fourth proportional to 2,885.12, 4,325.24 and 1,422.28 is: 2,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.12 : 4,325.24 = 1,422.28 : x
  2. Step 2: Convert to fraction form
    2,885.12/4,325.24 = 1,422.28/x
  3. Step 3: Cross multiply
    2,885.12x = 4,325.24 × 1,422.28
  4. Step 4: Simplify right side
    2,885.12x = 6,151,702.35
  5. Step 5: Solve for x
    x = 6,151,702.35/2,885.12
  6. Step 6: Final answer
    x = 2,132.22

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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.