Home / 7,718.48-11,583.29-2,788.62

Finding the Fourth Proportional to 7,718.48, 11,583.29 and 2,788.62

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Solution

The fourth proportional to 7,718.48, 11,583.29 and 2,788.62 is: 4,184.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.48 : 11,583.29 = 2,788.62 : x
  2. Step 2: Convert to fraction form
    7,718.48/11,583.29 = 2,788.62/x
  3. Step 3: Cross multiply
    7,718.48x = 11,583.29 × 2,788.62
  4. Step 4: Simplify right side
    7,718.48x = 32,301,394.16
  5. Step 5: Solve for x
    x = 32,301,394.16/7,718.48
  6. Step 6: Final answer
    x = 4,184.94

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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.