Home / 7,688.18-10,610.72-4,331.66

Finding the Fourth Proportional to 7,688.18, 10,610.72 and 4,331.66

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Solution

The fourth proportional to 7,688.18, 10,610.72 and 4,331.66 is: 5,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.18 : 10,610.72 = 4,331.66 : x
  2. Step 2: Convert to fraction form
    7,688.18/10,610.72 = 4,331.66/x
  3. Step 3: Cross multiply
    7,688.18x = 10,610.72 × 4,331.66
  4. Step 4: Simplify right side
    7,688.18x = 45,961,956.68
  5. Step 5: Solve for x
    x = 45,961,956.68/7,688.18
  6. Step 6: Final answer
    x = 5,978.27

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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.