Home / 2,890.60-4,331.85-2,542.30

Finding the Fourth Proportional to 2,890.60, 4,331.85 and 2,542.30

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Solution

The fourth proportional to 2,890.60, 4,331.85 and 2,542.30 is: 3,809.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.60 : 4,331.85 = 2,542.30 : x
  2. Step 2: Convert to fraction form
    2,890.60/4,331.85 = 2,542.30/x
  3. Step 3: Cross multiply
    2,890.60x = 4,331.85 × 2,542.30
  4. Step 4: Simplify right side
    2,890.60x = 11,012,862.26
  5. Step 5: Solve for x
    x = 11,012,862.26/2,890.60
  6. Step 6: Final answer
    x = 3,809.89

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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.