Home / 6,947.92-10,405.08-4,870

Finding the Fourth Proportional to 6,947.92, 10,405.08 and 4,870

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Solution

The fourth proportional to 6,947.92, 10,405.08 and 4,870 is: 7,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.92 : 10,405.08 = 4,870 : x
  2. Step 2: Convert to fraction form
    6,947.92/10,405.08 = 4,870/x
  3. Step 3: Cross multiply
    6,947.92x = 10,405.08 × 4,870
  4. Step 4: Simplify right side
    6,947.92x = 50,672,739.60
  5. Step 5: Solve for x
    x = 50,672,739.60/6,947.92
  6. Step 6: Final answer
    x = 7,293.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.