Home / 8,790.28-13,185.40-2,216.98

Finding the Fourth Proportional to 8,790.28, 13,185.40 and 2,216.98

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Solution

The fourth proportional to 8,790.28, 13,185.40 and 2,216.98 is: 3,325.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.28 : 13,185.40 = 2,216.98 : x
  2. Step 2: Convert to fraction form
    8,790.28/13,185.40 = 2,216.98/x
  3. Step 3: Cross multiply
    8,790.28x = 13,185.40 × 2,216.98
  4. Step 4: Simplify right side
    8,790.28x = 29,231,768.09
  5. Step 5: Solve for x
    x = 29,231,768.09/8,790.28
  6. Step 6: Final answer
    x = 3,325.46

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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.