Home / 7,775.82-10,730.60-4,239.02

Finding the Fourth Proportional to 7,775.82, 10,730.60 and 4,239.02

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Solution

The fourth proportional to 7,775.82, 10,730.60 and 4,239.02 is: 5,849.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.82 : 10,730.60 = 4,239.02 : x
  2. Step 2: Convert to fraction form
    7,775.82/10,730.60 = 4,239.02/x
  3. Step 3: Cross multiply
    7,775.82x = 10,730.60 × 4,239.02
  4. Step 4: Simplify right side
    7,775.82x = 45,487,228.01
  5. Step 5: Solve for x
    x = 45,487,228.01/7,775.82
  6. Step 6: Final answer
    x = 5,849.83

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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.