Home / 5,113.07-7,662.34-3,938.63

Finding the Fourth Proportional to 5,113.07, 7,662.34 and 3,938.63

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Solution

The fourth proportional to 5,113.07, 7,662.34 and 3,938.63 is: 5,902.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.07 : 7,662.34 = 3,938.63 : x
  2. Step 2: Convert to fraction form
    5,113.07/7,662.34 = 3,938.63/x
  3. Step 3: Cross multiply
    5,113.07x = 7,662.34 × 3,938.63
  4. Step 4: Simplify right side
    5,113.07x = 30,179,122.19
  5. Step 5: Solve for x
    x = 30,179,122.19/5,113.07
  6. Step 6: Final answer
    x = 5,902.35

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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.