Home / 7,919.68-10,929.48-4,382.84

Finding the Fourth Proportional to 7,919.68, 10,929.48 and 4,382.84

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Solution

The fourth proportional to 7,919.68, 10,929.48 and 4,382.84 is: 6,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.68 : 10,929.48 = 4,382.84 : x
  2. Step 2: Convert to fraction form
    7,919.68/10,929.48 = 4,382.84/x
  3. Step 3: Cross multiply
    7,919.68x = 10,929.48 × 4,382.84
  4. Step 4: Simplify right side
    7,919.68x = 47,902,162.12
  5. Step 5: Solve for x
    x = 47,902,162.12/7,919.68
  6. Step 6: Final answer
    x = 6,048.50

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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.