Home / 7,721.38-10,655.55-4,184.65

Finding the Fourth Proportional to 7,721.38, 10,655.55 and 4,184.65

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Solution

The fourth proportional to 7,721.38, 10,655.55 and 4,184.65 is: 5,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.38 : 10,655.55 = 4,184.65 : x
  2. Step 2: Convert to fraction form
    7,721.38/10,655.55 = 4,184.65/x
  3. Step 3: Cross multiply
    7,721.38x = 10,655.55 × 4,184.65
  4. Step 4: Simplify right side
    7,721.38x = 44,589,747.31
  5. Step 5: Solve for x
    x = 44,589,747.31/7,721.38
  6. Step 6: Final answer
    x = 5,774.84

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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.