Home / 3,218.87-4,827.28-1,658.67

Finding the Fourth Proportional to 3,218.87, 4,827.28 and 1,658.67

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Solution

The fourth proportional to 3,218.87, 4,827.28 and 1,658.67 is: 2,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.87 : 4,827.28 = 1,658.67 : x
  2. Step 2: Convert to fraction form
    3,218.87/4,827.28 = 1,658.67/x
  3. Step 3: Cross multiply
    3,218.87x = 4,827.28 × 1,658.67
  4. Step 4: Simplify right side
    3,218.87x = 8,006,864.52
  5. Step 5: Solve for x
    x = 8,006,864.52/3,218.87
  6. Step 6: Final answer
    x = 2,487.48

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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.