Home / 4,451.59-6,678.84-1,821.30

Finding the Fourth Proportional to 4,451.59, 6,678.84 and 1,821.30

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Solution

The fourth proportional to 4,451.59, 6,678.84 and 1,821.30 is: 2,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,451.59 : 6,678.84 = 1,821.30 : x
  2. Step 2: Convert to fraction form
    4,451.59/6,678.84 = 1,821.30/x
  3. Step 3: Cross multiply
    4,451.59x = 6,678.84 × 1,821.30
  4. Step 4: Simplify right side
    4,451.59x = 12,164,171.29
  5. Step 5: Solve for x
    x = 12,164,171.29/4,451.59
  6. Step 6: Final answer
    x = 2,732.55

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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.