Home / 7,721.50-10,655.66-4,184.71

Finding the Fourth Proportional to 7,721.50, 10,655.66 and 4,184.71

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Solution

The fourth proportional to 7,721.50, 10,655.66 and 4,184.71 is: 5,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.50 : 10,655.66 = 4,184.71 : x
  2. Step 2: Convert to fraction form
    7,721.50/10,655.66 = 4,184.71/x
  3. Step 3: Cross multiply
    7,721.50x = 10,655.66 × 4,184.71
  4. Step 4: Simplify right side
    7,721.50x = 44,590,830.78
  5. Step 5: Solve for x
    x = 44,590,830.78/7,721.50
  6. Step 6: Final answer
    x = 5,774.89

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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.