Home / 3,152.78-4,350.76-1,974.50

Finding the Fourth Proportional to 3,152.78, 4,350.76 and 1,974.50

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Solution

The fourth proportional to 3,152.78, 4,350.76 and 1,974.50 is: 2,724.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.78 : 4,350.76 = 1,974.50 : x
  2. Step 2: Convert to fraction form
    3,152.78/4,350.76 = 1,974.50/x
  3. Step 3: Cross multiply
    3,152.78x = 4,350.76 × 1,974.50
  4. Step 4: Simplify right side
    3,152.78x = 8,590,548.93
  5. Step 5: Solve for x
    x = 8,590,548.93/3,152.78
  6. Step 6: Final answer
    x = 2,724.76

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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.