Home / 7,718.90-11,581.13-3,036.32

Finding the Fourth Proportional to 7,718.90, 11,581.13 and 3,036.32

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Solution

The fourth proportional to 7,718.90, 11,581.13 and 3,036.32 is: 4,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.90 : 11,581.13 = 3,036.32 : x
  2. Step 2: Convert to fraction form
    7,718.90/11,581.13 = 3,036.32/x
  3. Step 3: Cross multiply
    7,718.90x = 11,581.13 × 3,036.32
  4. Step 4: Simplify right side
    7,718.90x = 35,164,016.64
  5. Step 5: Solve for x
    x = 35,164,016.64/7,718.90
  6. Step 6: Final answer
    x = 4,555.57

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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.