Home / 2,558.40-3,837.60-2,542.20

Finding the Fourth Proportional to 2,558.40, 3,837.60 and 2,542.20

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Solution

The fourth proportional to 2,558.40, 3,837.60 and 2,542.20 is: 3,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.40 : 3,837.60 = 2,542.20 : x
  2. Step 2: Convert to fraction form
    2,558.40/3,837.60 = 2,542.20/x
  3. Step 3: Cross multiply
    2,558.40x = 3,837.60 × 2,542.20
  4. Step 4: Simplify right side
    2,558.40x = 9,755,946.72
  5. Step 5: Solve for x
    x = 9,755,946.72/2,558.40
  6. Step 6: Final answer
    x = 3,813.30

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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.