Home / 7,639.96-11,457.78-2,708.29

Finding the Fourth Proportional to 7,639.96, 11,457.78 and 2,708.29

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Solution

The fourth proportional to 7,639.96, 11,457.78 and 2,708.29 is: 4,061.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.96 : 11,457.78 = 2,708.29 : x
  2. Step 2: Convert to fraction form
    7,639.96/11,457.78 = 2,708.29/x
  3. Step 3: Cross multiply
    7,639.96x = 11,457.78 × 2,708.29
  4. Step 4: Simplify right side
    7,639.96x = 31,030,991.00
  5. Step 5: Solve for x
    x = 31,030,991.00/7,639.96
  6. Step 6: Final answer
    x = 4,061.67

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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.