Home / 5,150.10-7,718.20-3,756.90

Finding the Fourth Proportional to 5,150.10, 7,718.20 and 3,756.90

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Solution

The fourth proportional to 5,150.10, 7,718.20 and 3,756.90 is: 5,630.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.10 : 7,718.20 = 3,756.90 : x
  2. Step 2: Convert to fraction form
    5,150.10/7,718.20 = 3,756.90/x
  3. Step 3: Cross multiply
    5,150.10x = 7,718.20 × 3,756.90
  4. Step 4: Simplify right side
    5,150.10x = 28,996,496.19
  5. Step 5: Solve for x
    x = 28,996,496.19/5,150.10
  6. Step 6: Final answer
    x = 5,630.28

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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.