Home / 7,721.72-10,655.79-4,364

Finding the Fourth Proportional to 7,721.72, 10,655.79 and 4,364

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Solution

The fourth proportional to 7,721.72, 10,655.79 and 4,364 is: 6,022.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.72 : 10,655.79 = 4,364 : x
  2. Step 2: Convert to fraction form
    7,721.72/10,655.79 = 4,364/x
  3. Step 3: Cross multiply
    7,721.72x = 10,655.79 × 4,364
  4. Step 4: Simplify right side
    7,721.72x = 46,501,867.56
  5. Step 5: Solve for x
    x = 46,501,867.56/7,721.72
  6. Step 6: Final answer
    x = 6,022.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.