Home / 3,555.80-5,333.70-2,691.80

Finding the Fourth Proportional to 3,555.80, 5,333.70 and 2,691.80

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Solution

The fourth proportional to 3,555.80, 5,333.70 and 2,691.80 is: 4,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.80 : 5,333.70 = 2,691.80 : x
  2. Step 2: Convert to fraction form
    3,555.80/5,333.70 = 2,691.80/x
  3. Step 3: Cross multiply
    3,555.80x = 5,333.70 × 2,691.80
  4. Step 4: Simplify right side
    3,555.80x = 14,357,253.66
  5. Step 5: Solve for x
    x = 14,357,253.66/3,555.80
  6. Step 6: Final answer
    x = 4,037.70

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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.