Home / 3,555.02-5,333.17-1,089.78

Finding the Fourth Proportional to 3,555.02, 5,333.17 and 1,089.78

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Solution

The fourth proportional to 3,555.02, 5,333.17 and 1,089.78 is: 1,634.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.02 : 5,333.17 = 1,089.78 : x
  2. Step 2: Convert to fraction form
    3,555.02/5,333.17 = 1,089.78/x
  3. Step 3: Cross multiply
    3,555.02x = 5,333.17 × 1,089.78
  4. Step 4: Simplify right side
    3,555.02x = 5,811,982.00
  5. Step 5: Solve for x
    x = 5,811,982.00/3,555.02
  6. Step 6: Final answer
    x = 1,634.87

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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.