Home / 2,330.40-3,216.96-1,658.64

Finding the Fourth Proportional to 2,330.40, 3,216.96 and 1,658.64

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Solution

The fourth proportional to 2,330.40, 3,216.96 and 1,658.64 is: 2,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.40 : 3,216.96 = 1,658.64 : x
  2. Step 2: Convert to fraction form
    2,330.40/3,216.96 = 1,658.64/x
  3. Step 3: Cross multiply
    2,330.40x = 3,216.96 × 1,658.64
  4. Step 4: Simplify right side
    2,330.40x = 5,335,778.53
  5. Step 5: Solve for x
    x = 5,335,778.53/2,330.40
  6. Step 6: Final answer
    x = 2,289.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.