Home / 3,357.12-4,633.74-2,178.12

Finding the Fourth Proportional to 3,357.12, 4,633.74 and 2,178.12

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Solution

The fourth proportional to 3,357.12, 4,633.74 and 2,178.12 is: 3,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357.12 : 4,633.74 = 2,178.12 : x
  2. Step 2: Convert to fraction form
    3,357.12/4,633.74 = 2,178.12/x
  3. Step 3: Cross multiply
    3,357.12x = 4,633.74 × 2,178.12
  4. Step 4: Simplify right side
    3,357.12x = 10,092,841.77
  5. Step 5: Solve for x
    x = 10,092,841.77/3,357.12
  6. Step 6: Final answer
    x = 3,006.40

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Half scale
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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.