Home / 7,639.86-11,458.14-2,709.66

Finding the Fourth Proportional to 7,639.86, 11,458.14 and 2,709.66

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Solution

The fourth proportional to 7,639.86, 11,458.14 and 2,709.66 is: 4,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.86 : 11,458.14 = 2,709.66 : x
  2. Step 2: Convert to fraction form
    7,639.86/11,458.14 = 2,709.66/x
  3. Step 3: Cross multiply
    7,639.86x = 11,458.14 × 2,709.66
  4. Step 4: Simplify right side
    7,639.86x = 31,047,663.63
  5. Step 5: Solve for x
    x = 31,047,663.63/7,639.86
  6. Step 6: Final answer
    x = 4,063.90

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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.