Home / 5,056.50-6,977.90-2,818.56

Finding the Fourth Proportional to 5,056.50, 6,977.90 and 2,818.56

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Solution

The fourth proportional to 5,056.50, 6,977.90 and 2,818.56 is: 3,889.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,056.50 : 6,977.90 = 2,818.56 : x
  2. Step 2: Convert to fraction form
    5,056.50/6,977.90 = 2,818.56/x
  3. Step 3: Cross multiply
    5,056.50x = 6,977.90 × 2,818.56
  4. Step 4: Simplify right side
    5,056.50x = 19,667,629.82
  5. Step 5: Solve for x
    x = 19,667,629.82/5,056.50
  6. Step 6: Final answer
    x = 3,889.57

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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.