Home / 3,215.44-4,437.68-1,818.48

Finding the Fourth Proportional to 3,215.44, 4,437.68 and 1,818.48

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Solution

The fourth proportional to 3,215.44, 4,437.68 and 1,818.48 is: 2,509.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.44 : 4,437.68 = 1,818.48 : x
  2. Step 2: Convert to fraction form
    3,215.44/4,437.68 = 1,818.48/x
  3. Step 3: Cross multiply
    3,215.44x = 4,437.68 × 1,818.48
  4. Step 4: Simplify right side
    3,215.44x = 8,069,832.33
  5. Step 5: Solve for x
    x = 8,069,832.33/3,215.44
  6. Step 6: Final answer
    x = 2,509.71

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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.