Home / 2,216.58-3,325.26-918.96

Finding the Fourth Proportional to 2,216.58, 3,325.26 and 918.96

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Solution

The fourth proportional to 2,216.58, 3,325.26 and 918.96 is: 1,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.58 : 3,325.26 = 918.96 : x
  2. Step 2: Convert to fraction form
    2,216.58/3,325.26 = 918.96/x
  3. Step 3: Cross multiply
    2,216.58x = 3,325.26 × 918.96
  4. Step 4: Simplify right side
    2,216.58x = 3,055,780.93
  5. Step 5: Solve for x
    x = 3,055,780.93/2,216.58
  6. Step 6: Final answer
    x = 1,378.60

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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.