Home / 8,288.19-12,430.48-2,740.22

Finding the Fourth Proportional to 8,288.19, 12,430.48 and 2,740.22

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Solution

The fourth proportional to 8,288.19, 12,430.48 and 2,740.22 is: 4,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,288.19 : 12,430.48 = 2,740.22 : x
  2. Step 2: Convert to fraction form
    8,288.19/12,430.48 = 2,740.22/x
  3. Step 3: Cross multiply
    8,288.19x = 12,430.48 × 2,740.22
  4. Step 4: Simplify right side
    8,288.19x = 34,062,249.91
  5. Step 5: Solve for x
    x = 34,062,249.91/8,288.19
  6. Step 6: Final answer
    x = 4,109.73

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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.