Home / 3,215.70-4,815.45-2,567.70

Finding the Fourth Proportional to 3,215.70, 4,815.45 and 2,567.70

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Solution

The fourth proportional to 3,215.70, 4,815.45 and 2,567.70 is: 3,845.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.70 : 4,815.45 = 2,567.70 : x
  2. Step 2: Convert to fraction form
    3,215.70/4,815.45 = 2,567.70/x
  3. Step 3: Cross multiply
    3,215.70x = 4,815.45 × 2,567.70
  4. Step 4: Simplify right side
    3,215.70x = 12,364,630.97
  5. Step 5: Solve for x
    x = 12,364,630.97/3,215.70
  6. Step 6: Final answer
    x = 3,845.08

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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.