Home / 7,929.36-10,942.36-4,392.60

Finding the Fourth Proportional to 7,929.36, 10,942.36 and 4,392.60

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Solution

The fourth proportional to 7,929.36, 10,942.36 and 4,392.60 is: 6,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.36 : 10,942.36 = 4,392.60 : x
  2. Step 2: Convert to fraction form
    7,929.36/10,942.36 = 4,392.60/x
  3. Step 3: Cross multiply
    7,929.36x = 10,942.36 × 4,392.60
  4. Step 4: Simplify right side
    7,929.36x = 48,065,410.54
  5. Step 5: Solve for x
    x = 48,065,410.54/7,929.36
  6. Step 6: Final answer
    x = 6,061.70

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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.