Home / 3,576.80-5,365.74-1,387.10

Finding the Fourth Proportional to 3,576.80, 5,365.74 and 1,387.10

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Solution

The fourth proportional to 3,576.80, 5,365.74 and 1,387.10 is: 2,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.80 : 5,365.74 = 1,387.10 : x
  2. Step 2: Convert to fraction form
    3,576.80/5,365.74 = 1,387.10/x
  3. Step 3: Cross multiply
    3,576.80x = 5,365.74 × 1,387.10
  4. Step 4: Simplify right side
    3,576.80x = 7,442,817.95
  5. Step 5: Solve for x
    x = 7,442,817.95/3,576.80
  6. Step 6: Final answer
    x = 2,080.86

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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.