Home / 8,780.43-13,168.66-2,539.05

Finding the Fourth Proportional to 8,780.43, 13,168.66 and 2,539.05

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Solution

The fourth proportional to 8,780.43, 13,168.66 and 2,539.05 is: 3,808.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.43 : 13,168.66 = 2,539.05 : x
  2. Step 2: Convert to fraction form
    8,780.43/13,168.66 = 2,539.05/x
  3. Step 3: Cross multiply
    8,780.43x = 13,168.66 × 2,539.05
  4. Step 4: Simplify right side
    8,780.43x = 33,435,879.83
  5. Step 5: Solve for x
    x = 33,435,879.83/8,780.43
  6. Step 6: Final answer
    x = 3,808.00

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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.