Home / 3,213.24-4,432.80-1,886.92

Finding the Fourth Proportional to 3,213.24, 4,432.80 and 1,886.92

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Solution

The fourth proportional to 3,213.24, 4,432.80 and 1,886.92 is: 2,603.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.24 : 4,432.80 = 1,886.92 : x
  2. Step 2: Convert to fraction form
    3,213.24/4,432.80 = 1,886.92/x
  3. Step 3: Cross multiply
    3,213.24x = 4,432.80 × 1,886.92
  4. Step 4: Simplify right side
    3,213.24x = 8,364,338.98
  5. Step 5: Solve for x
    x = 8,364,338.98/3,213.24
  6. Step 6: Final answer
    x = 2,603.09

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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.