Home / 4,930.92-6,807.42-3,420.72

Finding the Fourth Proportional to 4,930.92, 6,807.42 and 3,420.72

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Solution

The fourth proportional to 4,930.92, 6,807.42 and 3,420.72 is: 4,722.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.92 : 6,807.42 = 3,420.72 : x
  2. Step 2: Convert to fraction form
    4,930.92/6,807.42 = 3,420.72/x
  3. Step 3: Cross multiply
    4,930.92x = 6,807.42 × 3,420.72
  4. Step 4: Simplify right side
    4,930.92x = 23,286,277.74
  5. Step 5: Solve for x
    x = 23,286,277.74/4,930.92
  6. Step 6: Final answer
    x = 4,722.50

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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.