Home / 6,688.81-9,231.24-3,856.29

Finding the Fourth Proportional to 6,688.81, 9,231.24 and 3,856.29

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Solution

The fourth proportional to 6,688.81, 9,231.24 and 3,856.29 is: 5,322.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.81 : 9,231.24 = 3,856.29 : x
  2. Step 2: Convert to fraction form
    6,688.81/9,231.24 = 3,856.29/x
  3. Step 3: Cross multiply
    6,688.81x = 9,231.24 × 3,856.29
  4. Step 4: Simplify right side
    6,688.81x = 35,598,338.50
  5. Step 5: Solve for x
    x = 35,598,338.50/6,688.81
  6. Step 6: Final answer
    x = 5,322.07

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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.