Home / 3,680.55-5,519.65-1,214.91

Finding the Fourth Proportional to 3,680.55, 5,519.65 and 1,214.91

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Solution

The fourth proportional to 3,680.55, 5,519.65 and 1,214.91 is: 1,821.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.55 : 5,519.65 = 1,214.91 : x
  2. Step 2: Convert to fraction form
    3,680.55/5,519.65 = 1,214.91/x
  3. Step 3: Cross multiply
    3,680.55x = 5,519.65 × 1,214.91
  4. Step 4: Simplify right side
    3,680.55x = 6,705,877.98
  5. Step 5: Solve for x
    x = 6,705,877.98/3,680.55
  6. Step 6: Final answer
    x = 1,821.98

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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.