Home / 5,174.51-7,756.29-3,720.15

Finding the Fourth Proportional to 5,174.51, 7,756.29 and 3,720.15

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Solution

The fourth proportional to 5,174.51, 7,756.29 and 3,720.15 is: 5,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.51 : 7,756.29 = 3,720.15 : x
  2. Step 2: Convert to fraction form
    5,174.51/7,756.29 = 3,720.15/x
  3. Step 3: Cross multiply
    5,174.51x = 7,756.29 × 3,720.15
  4. Step 4: Simplify right side
    5,174.51x = 28,854,562.24
  5. Step 5: Solve for x
    x = 28,854,562.24/5,174.51
  6. Step 6: Final answer
    x = 5,576.29

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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.