Home / 5,157.10-7,730.18-3,921.46

Finding the Fourth Proportional to 5,157.10, 7,730.18 and 3,921.46

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Solution

The fourth proportional to 5,157.10, 7,730.18 and 3,921.46 is: 5,878.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.10 : 7,730.18 = 3,921.46 : x
  2. Step 2: Convert to fraction form
    5,157.10/7,730.18 = 3,921.46/x
  3. Step 3: Cross multiply
    5,157.10x = 7,730.18 × 3,921.46
  4. Step 4: Simplify right side
    5,157.10x = 30,313,591.66
  5. Step 5: Solve for x
    x = 30,313,591.66/5,157.10
  6. Step 6: Final answer
    x = 5,878.03

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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.