Home / 4,665.20-7,003.20-2,818.40

Finding the Fourth Proportional to 4,665.20, 7,003.20 and 2,818.40

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Solution

The fourth proportional to 4,665.20, 7,003.20 and 2,818.40 is: 4,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,665.20 : 7,003.20 = 2,818.40 : x
  2. Step 2: Convert to fraction form
    4,665.20/7,003.20 = 2,818.40/x
  3. Step 3: Cross multiply
    4,665.20x = 7,003.20 × 2,818.40
  4. Step 4: Simplify right side
    4,665.20x = 19,737,818.88
  5. Step 5: Solve for x
    x = 19,737,818.88/4,665.20
  6. Step 6: Final answer
    x = 4,230.86

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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.