Home / 7,688.90-10,610.71-4,331.75

Finding the Fourth Proportional to 7,688.90, 10,610.71 and 4,331.75

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Solution

The fourth proportional to 7,688.90, 10,610.71 and 4,331.75 is: 5,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.90 : 10,610.71 = 4,331.75 : x
  2. Step 2: Convert to fraction form
    7,688.90/10,610.71 = 4,331.75/x
  3. Step 3: Cross multiply
    7,688.90x = 10,610.71 × 4,331.75
  4. Step 4: Simplify right side
    7,688.90x = 45,962,918.95
  5. Step 5: Solve for x
    x = 45,962,918.95/7,688.90
  6. Step 6: Final answer
    x = 5,977.83

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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.