Home / 7,775.62-10,730.38-4,238.76

Finding the Fourth Proportional to 7,775.62, 10,730.38 and 4,238.76

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Solution

The fourth proportional to 7,775.62, 10,730.38 and 4,238.76 is: 5,849.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.62 : 10,730.38 = 4,238.76 : x
  2. Step 2: Convert to fraction form
    7,775.62/10,730.38 = 4,238.76/x
  3. Step 3: Cross multiply
    7,775.62x = 10,730.38 × 4,238.76
  4. Step 4: Simplify right side
    7,775.62x = 45,483,505.53
  5. Step 5: Solve for x
    x = 45,483,505.53/7,775.62
  6. Step 6: Final answer
    x = 5,849.50

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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.