Home / 3,120.83-4,667.46-2,776.58

Finding the Fourth Proportional to 3,120.83, 4,667.46 and 2,776.58

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Solution

The fourth proportional to 3,120.83, 4,667.46 and 2,776.58 is: 4,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.83 : 4,667.46 = 2,776.58 : x
  2. Step 2: Convert to fraction form
    3,120.83/4,667.46 = 2,776.58/x
  3. Step 3: Cross multiply
    3,120.83x = 4,667.46 × 2,776.58
  4. Step 4: Simplify right side
    3,120.83x = 12,959,552.75
  5. Step 5: Solve for x
    x = 12,959,552.75/3,120.83
  6. Step 6: Final answer
    x = 4,152.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.