Home / 4,911.68-6,775.62-2,814.50

Finding the Fourth Proportional to 4,911.68, 6,775.62 and 2,814.50

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Solution

The fourth proportional to 4,911.68, 6,775.62 and 2,814.50 is: 3,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.68 : 6,775.62 = 2,814.50 : x
  2. Step 2: Convert to fraction form
    4,911.68/6,775.62 = 2,814.50/x
  3. Step 3: Cross multiply
    4,911.68x = 6,775.62 × 2,814.50
  4. Step 4: Simplify right side
    4,911.68x = 19,069,982.49
  5. Step 5: Solve for x
    x = 19,069,982.49/4,911.68
  6. Step 6: Final answer
    x = 3,882.58

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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.