Home / 7,742.82-10,685.17-4,206.10

Finding the Fourth Proportional to 7,742.82, 10,685.17 and 4,206.10

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Solution

The fourth proportional to 7,742.82, 10,685.17 and 4,206.10 is: 5,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.82 : 10,685.17 = 4,206.10 : x
  2. Step 2: Convert to fraction form
    7,742.82/10,685.17 = 4,206.10/x
  3. Step 3: Cross multiply
    7,742.82x = 10,685.17 × 4,206.10
  4. Step 4: Simplify right side
    7,742.82x = 44,942,893.54
  5. Step 5: Solve for x
    x = 44,942,893.54/7,742.82
  6. Step 6: Final answer
    x = 5,804.46

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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.