Home / 3,215.04-4,425.52-2,800.32

Finding the Fourth Proportional to 3,215.04, 4,425.52 and 2,800.32

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Solution

The fourth proportional to 3,215.04, 4,425.52 and 2,800.32 is: 3,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.04 : 4,425.52 = 2,800.32 : x
  2. Step 2: Convert to fraction form
    3,215.04/4,425.52 = 2,800.32/x
  3. Step 3: Cross multiply
    3,215.04x = 4,425.52 × 2,800.32
  4. Step 4: Simplify right side
    3,215.04x = 12,392,872.17
  5. Step 5: Solve for x
    x = 12,392,872.17/3,215.04
  6. Step 6: Final answer
    x = 3,854.66

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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.