Home / 7,761.83-11,641.32-2,215.35

Finding the Fourth Proportional to 7,761.83, 11,641.32 and 2,215.35

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Solution

The fourth proportional to 7,761.83, 11,641.32 and 2,215.35 is: 3,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.83 : 11,641.32 = 2,215.35 : x
  2. Step 2: Convert to fraction form
    7,761.83/11,641.32 = 2,215.35/x
  3. Step 3: Cross multiply
    7,761.83x = 11,641.32 × 2,215.35
  4. Step 4: Simplify right side
    7,761.83x = 25,789,598.26
  5. Step 5: Solve for x
    x = 25,789,598.26/7,761.83
  6. Step 6: Final answer
    x = 3,322.62

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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.