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Finding the Fourth Proportional to 3,215.08, 4,435.86 and 1,973.08

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Solution

The fourth proportional to 3,215.08, 4,435.86 and 1,973.08 is: 2,722.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.08 : 4,435.86 = 1,973.08 : x
  2. Step 2: Convert to fraction form
    3,215.08/4,435.86 = 1,973.08/x
  3. Step 3: Cross multiply
    3,215.08x = 4,435.86 × 1,973.08
  4. Step 4: Simplify right side
    3,215.08x = 8,752,306.65
  5. Step 5: Solve for x
    x = 8,752,306.65/3,215.08
  6. Step 6: Final answer
    x = 2,722.27

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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.