Home / 8,790.45-13,176.45-3,240.25

Finding the Fourth Proportional to 8,790.45, 13,176.45 and 3,240.25

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Solution

The fourth proportional to 8,790.45, 13,176.45 and 3,240.25 is: 4,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.45 : 13,176.45 = 3,240.25 : x
  2. Step 2: Convert to fraction form
    8,790.45/13,176.45 = 3,240.25/x
  3. Step 3: Cross multiply
    8,790.45x = 13,176.45 × 3,240.25
  4. Step 4: Simplify right side
    8,790.45x = 42,695,024.18
  5. Step 5: Solve for x
    x = 42,695,024.18/8,790.45
  6. Step 6: Final answer
    x = 4,856.98

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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.