Home / 7,929.80-10,943.19-4,785.38

Finding the Fourth Proportional to 7,929.80, 10,943.19 and 4,785.38

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Solution

The fourth proportional to 7,929.80, 10,943.19 and 4,785.38 is: 6,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.80 : 10,943.19 = 4,785.38 : x
  2. Step 2: Convert to fraction form
    7,929.80/10,943.19 = 4,785.38/x
  3. Step 3: Cross multiply
    7,929.80x = 10,943.19 × 4,785.38
  4. Step 4: Simplify right side
    7,929.80x = 52,367,267.85
  5. Step 5: Solve for x
    x = 52,367,267.85/7,929.80
  6. Step 6: Final answer
    x = 6,603.86

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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.