Home / 7,919.92-10,929.02-4,382.92

Finding the Fourth Proportional to 7,919.92, 10,929.02 and 4,382.92

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Solution

The fourth proportional to 7,919.92, 10,929.02 and 4,382.92 is: 6,048.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.92 : 10,929.02 = 4,382.92 : x
  2. Step 2: Convert to fraction form
    7,919.92/10,929.02 = 4,382.92/x
  3. Step 3: Cross multiply
    7,919.92x = 10,929.02 × 4,382.92
  4. Step 4: Simplify right side
    7,919.92x = 47,901,020.34
  5. Step 5: Solve for x
    x = 47,901,020.34/7,919.92
  6. Step 6: Final answer
    x = 6,048.17

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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.