Home / 7,920.05-10,929.60-4,383.17

Finding the Fourth Proportional to 7,920.05, 10,929.60 and 4,383.17

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Solution

The fourth proportional to 7,920.05, 10,929.60 and 4,383.17 is: 6,048.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.05 : 10,929.60 = 4,383.17 : x
  2. Step 2: Convert to fraction form
    7,920.05/10,929.60 = 4,383.17/x
  3. Step 3: Cross multiply
    7,920.05x = 10,929.60 × 4,383.17
  4. Step 4: Simplify right side
    7,920.05x = 47,906,294.83
  5. Step 5: Solve for x
    x = 47,906,294.83/7,920.05
  6. Step 6: Final answer
    x = 6,048.74

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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.