Home / 7,721.09-10,655.14-4,184.31

Finding the Fourth Proportional to 7,721.09, 10,655.14 and 4,184.31

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Solution

The fourth proportional to 7,721.09, 10,655.14 and 4,184.31 is: 5,774.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.09 : 10,655.14 = 4,184.31 : x
  2. Step 2: Convert to fraction form
    7,721.09/10,655.14 = 4,184.31/x
  3. Step 3: Cross multiply
    7,721.09x = 10,655.14 × 4,184.31
  4. Step 4: Simplify right side
    7,721.09x = 44,584,408.85
  5. Step 5: Solve for x
    x = 44,584,408.85/7,721.09
  6. Step 6: Final answer
    x = 5,774.37

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1.5x scale

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.