Home / 8,980.75-13,470.81-2,740.51

Finding the Fourth Proportional to 8,980.75, 13,470.81 and 2,740.51

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Solution

The fourth proportional to 8,980.75, 13,470.81 and 2,740.51 is: 4,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.75 : 13,470.81 = 2,740.51 : x
  2. Step 2: Convert to fraction form
    8,980.75/13,470.81 = 2,740.51/x
  3. Step 3: Cross multiply
    8,980.75x = 13,470.81 × 2,740.51
  4. Step 4: Simplify right side
    8,980.75x = 36,916,889.51
  5. Step 5: Solve for x
    x = 36,916,889.51/8,980.75
  6. Step 6: Final answer
    x = 4,110.67

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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.