Home / 7,051.71-10,577.79-2,121.39

Finding the Fourth Proportional to 7,051.71, 10,577.79 and 2,121.39

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Solution

The fourth proportional to 7,051.71, 10,577.79 and 2,121.39 is: 3,182.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.71 : 10,577.79 = 2,121.39 : x
  2. Step 2: Convert to fraction form
    7,051.71/10,577.79 = 2,121.39/x
  3. Step 3: Cross multiply
    7,051.71x = 10,577.79 × 2,121.39
  4. Step 4: Simplify right side
    7,051.71x = 22,439,617.93
  5. Step 5: Solve for x
    x = 22,439,617.93/7,051.71
  6. Step 6: Final answer
    x = 3,182.15

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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.