Home / 7,355.98-10,151.27-3,998.79

Finding the Fourth Proportional to 7,355.98, 10,151.27 and 3,998.79

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Solution

The fourth proportional to 7,355.98, 10,151.27 and 3,998.79 is: 5,518.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.98 : 10,151.27 = 3,998.79 : x
  2. Step 2: Convert to fraction form
    7,355.98/10,151.27 = 3,998.79/x
  3. Step 3: Cross multiply
    7,355.98x = 10,151.27 × 3,998.79
  4. Step 4: Simplify right side
    7,355.98x = 40,592,796.96
  5. Step 5: Solve for x
    x = 40,592,796.96/7,355.98
  6. Step 6: Final answer
    x = 5,518.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.