Home / 7,776.05-10,730.97-4,239.45

Finding the Fourth Proportional to 7,776.05, 10,730.97 and 4,239.45

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Solution

The fourth proportional to 7,776.05, 10,730.97 and 4,239.45 is: 5,850.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.05 : 10,730.97 = 4,239.45 : x
  2. Step 2: Convert to fraction form
    7,776.05/10,730.97 = 4,239.45/x
  3. Step 3: Cross multiply
    7,776.05x = 10,730.97 × 4,239.45
  4. Step 4: Simplify right side
    7,776.05x = 45,493,410.77
  5. Step 5: Solve for x
    x = 45,493,410.77/7,776.05
  6. Step 6: Final answer
    x = 5,850.46

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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.