Home / 7,718.29-11,577.40-1,874.91

Finding the Fourth Proportional to 7,718.29, 11,577.40 and 1,874.91

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Solution

The fourth proportional to 7,718.29, 11,577.40 and 1,874.91 is: 2,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.29 : 11,577.40 = 1,874.91 : x
  2. Step 2: Convert to fraction form
    7,718.29/11,577.40 = 1,874.91/x
  3. Step 3: Cross multiply
    7,718.29x = 11,577.40 × 1,874.91
  4. Step 4: Simplify right side
    7,718.29x = 21,706,621.76
  5. Step 5: Solve for x
    x = 21,706,621.76/7,718.29
  6. Step 6: Final answer
    x = 2,812.36

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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.