Home / 7,743.20-10,685.68-4,206.48

Finding the Fourth Proportional to 7,743.20, 10,685.68 and 4,206.48

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Solution

The fourth proportional to 7,743.20, 10,685.68 and 4,206.48 is: 5,804.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.20 : 10,685.68 = 4,206.48 : x
  2. Step 2: Convert to fraction form
    7,743.20/10,685.68 = 4,206.48/x
  3. Step 3: Cross multiply
    7,743.20x = 10,685.68 × 4,206.48
  4. Step 4: Simplify right side
    7,743.20x = 44,949,099.21
  5. Step 5: Solve for x
    x = 44,949,099.21/7,743.20
  6. Step 6: Final answer
    x = 5,804.98

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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.