Home / 3,215.74-4,438.47-1,818.94

Finding the Fourth Proportional to 3,215.74, 4,438.47 and 1,818.94

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Solution

The fourth proportional to 3,215.74, 4,438.47 and 1,818.94 is: 2,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.74 : 4,438.47 = 1,818.94 : x
  2. Step 2: Convert to fraction form
    3,215.74/4,438.47 = 1,818.94/x
  3. Step 3: Cross multiply
    3,215.74x = 4,438.47 × 1,818.94
  4. Step 4: Simplify right side
    3,215.74x = 8,073,310.62
  5. Step 5: Solve for x
    x = 8,073,310.62/3,215.74
  6. Step 6: Final answer
    x = 2,510.56

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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.