Home / 4,911.04-6,778.20-2,816.56

Finding the Fourth Proportional to 4,911.04, 6,778.20 and 2,816.56

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Solution

The fourth proportional to 4,911.04, 6,778.20 and 2,816.56 is: 3,887.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.04 : 6,778.20 = 2,816.56 : x
  2. Step 2: Convert to fraction form
    4,911.04/6,778.20 = 2,816.56/x
  3. Step 3: Cross multiply
    4,911.04x = 6,778.20 × 2,816.56
  4. Step 4: Simplify right side
    4,911.04x = 19,091,206.99
  5. Step 5: Solve for x
    x = 19,091,206.99/4,911.04
  6. Step 6: Final answer
    x = 3,887.41

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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.