Home / 7,800.85-11,701.32-2,606.71

Finding the Fourth Proportional to 7,800.85, 11,701.32 and 2,606.71

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Solution

The fourth proportional to 7,800.85, 11,701.32 and 2,606.71 is: 3,910.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.85 : 11,701.32 = 2,606.71 : x
  2. Step 2: Convert to fraction form
    7,800.85/11,701.32 = 2,606.71/x
  3. Step 3: Cross multiply
    7,800.85x = 11,701.32 × 2,606.71
  4. Step 4: Simplify right side
    7,800.85x = 30,501,947.86
  5. Step 5: Solve for x
    x = 30,501,947.86/7,800.85
  6. Step 6: Final answer
    x = 3,910.08

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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.