Home / 2,599.60-3,899.34-2,165.80

Finding the Fourth Proportional to 2,599.60, 3,899.34 and 2,165.80

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Solution

The fourth proportional to 2,599.60, 3,899.34 and 2,165.80 is: 3,248.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.60 : 3,899.34 = 2,165.80 : x
  2. Step 2: Convert to fraction form
    2,599.60/3,899.34 = 2,165.80/x
  3. Step 3: Cross multiply
    2,599.60x = 3,899.34 × 2,165.80
  4. Step 4: Simplify right side
    2,599.60x = 8,445,190.57
  5. Step 5: Solve for x
    x = 8,445,190.57/2,599.60
  6. Step 6: Final answer
    x = 3,248.65

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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.