Home / 1,427.40-2,144.30-995.40

Finding the Fourth Proportional to 1,427.40, 2,144.30 and 995.40

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Solution

The fourth proportional to 1,427.40, 2,144.30 and 995.40 is: 1,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.40 : 2,144.30 = 995.40 : x
  2. Step 2: Convert to fraction form
    1,427.40/2,144.30 = 995.40/x
  3. Step 3: Cross multiply
    1,427.40x = 2,144.30 × 995.40
  4. Step 4: Simplify right side
    1,427.40x = 2,134,436.22
  5. Step 5: Solve for x
    x = 2,134,436.22/1,427.40
  6. Step 6: Final answer
    x = 1,495.33

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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.