Home / 8,790.16-13,186.61-2,865.67

Finding the Fourth Proportional to 8,790.16, 13,186.61 and 2,865.67

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Solution

The fourth proportional to 8,790.16, 13,186.61 and 2,865.67 is: 4,298.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.16 : 13,186.61 = 2,865.67 : x
  2. Step 2: Convert to fraction form
    8,790.16/13,186.61 = 2,865.67/x
  3. Step 3: Cross multiply
    8,790.16x = 13,186.61 × 2,865.67
  4. Step 4: Simplify right side
    8,790.16x = 37,788,472.68
  5. Step 5: Solve for x
    x = 37,788,472.68/8,790.16
  6. Step 6: Final answer
    x = 4,298.95

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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.