Home / 7,908.08-10,912.80-4,371.68

Finding the Fourth Proportional to 7,908.08, 10,912.80 and 4,371.68

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Solution

The fourth proportional to 7,908.08, 10,912.80 and 4,371.68 is: 6,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.08 : 10,912.80 = 4,371.68 : x
  2. Step 2: Convert to fraction form
    7,908.08/10,912.80 = 4,371.68/x
  3. Step 3: Cross multiply
    7,908.08x = 10,912.80 × 4,371.68
  4. Step 4: Simplify right side
    7,908.08x = 47,707,269.50
  5. Step 5: Solve for x
    x = 47,707,269.50/7,908.08
  6. Step 6: Final answer
    x = 6,032.72

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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.