Home / 7,729.43-10,666.69-4,192.66

Finding the Fourth Proportional to 7,729.43, 10,666.69 and 4,192.66

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Solution

The fourth proportional to 7,729.43, 10,666.69 and 4,192.66 is: 5,785.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729.43 : 10,666.69 = 4,192.66 : x
  2. Step 2: Convert to fraction form
    7,729.43/10,666.69 = 4,192.66/x
  3. Step 3: Cross multiply
    7,729.43x = 10,666.69 × 4,192.66
  4. Step 4: Simplify right side
    7,729.43x = 44,721,807.35
  5. Step 5: Solve for x
    x = 44,721,807.35/7,729.43
  6. Step 6: Final answer
    x = 5,785.92

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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.