Home / 5,387.70-8,073.74-3,720.11

Finding the Fourth Proportional to 5,387.70, 8,073.74 and 3,720.11

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Solution

The fourth proportional to 5,387.70, 8,073.74 and 3,720.11 is: 5,574.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.70 : 8,073.74 = 3,720.11 : x
  2. Step 2: Convert to fraction form
    5,387.70/8,073.74 = 3,720.11/x
  3. Step 3: Cross multiply
    5,387.70x = 8,073.74 × 3,720.11
  4. Step 4: Simplify right side
    5,387.70x = 30,035,141.94
  5. Step 5: Solve for x
    x = 30,035,141.94/5,387.70
  6. Step 6: Final answer
    x = 5,574.76

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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.