Home / 2,816.10-3,881.93-2,217.50

Finding the Fourth Proportional to 2,816.10, 3,881.93 and 2,217.50

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Solution

The fourth proportional to 2,816.10, 3,881.93 and 2,217.50 is: 3,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.10 : 3,881.93 = 2,217.50 : x
  2. Step 2: Convert to fraction form
    2,816.10/3,881.93 = 2,217.50/x
  3. Step 3: Cross multiply
    2,816.10x = 3,881.93 × 2,217.50
  4. Step 4: Simplify right side
    2,816.10x = 8,608,162.47
  5. Step 5: Solve for x
    x = 8,608,162.47/2,816.10
  6. Step 6: Final answer
    x = 3,056.76

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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.