Home / 7,919.84-10,929.39-4,383.05

Finding the Fourth Proportional to 7,919.84, 10,929.39 and 4,383.05

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Solution

The fourth proportional to 7,919.84, 10,929.39 and 4,383.05 is: 6,048.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.84 : 10,929.39 = 4,383.05 : x
  2. Step 2: Convert to fraction form
    7,919.84/10,929.39 = 4,383.05/x
  3. Step 3: Cross multiply
    7,919.84x = 10,929.39 × 4,383.05
  4. Step 4: Simplify right side
    7,919.84x = 47,903,986.28
  5. Step 5: Solve for x
    x = 47,903,986.28/7,919.84
  6. Step 6: Final answer
    x = 6,048.61

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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.