Home / 6,924.32-10,385.84-2,820

Finding the Fourth Proportional to 6,924.32, 10,385.84 and 2,820

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Solution

The fourth proportional to 6,924.32, 10,385.84 and 2,820 is: 4,229.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,924.32 : 10,385.84 = 2,820 : x
  2. Step 2: Convert to fraction form
    6,924.32/10,385.84 = 2,820/x
  3. Step 3: Cross multiply
    6,924.32x = 10,385.84 × 2,820
  4. Step 4: Simplify right side
    6,924.32x = 29,288,068.80
  5. Step 5: Solve for x
    x = 29,288,068.80/6,924.32
  6. Step 6: Final answer
    x = 4,229.74

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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.