Home / 8,980.11-13,471.85-2,740.68

Finding the Fourth Proportional to 8,980.11, 13,471.85 and 2,740.68

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Solution

The fourth proportional to 8,980.11, 13,471.85 and 2,740.68 is: 4,111.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.11 : 13,471.85 = 2,740.68 : x
  2. Step 2: Convert to fraction form
    8,980.11/13,471.85 = 2,740.68/x
  3. Step 3: Cross multiply
    8,980.11x = 13,471.85 × 2,740.68
  4. Step 4: Simplify right side
    8,980.11x = 36,922,029.86
  5. Step 5: Solve for x
    x = 36,922,029.86/8,980.11
  6. Step 6: Final answer
    x = 4,111.53

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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.