Home / 3,215.22-4,437-1,817.97

Finding the Fourth Proportional to 3,215.22, 4,437 and 1,817.97

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Solution

The fourth proportional to 3,215.22, 4,437 and 1,817.97 is: 2,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.22 : 4,437 = 1,817.97 : x
  2. Step 2: Convert to fraction form
    3,215.22/4,437 = 1,817.97/x
  3. Step 3: Cross multiply
    3,215.22x = 4,437 × 1,817.97
  4. Step 4: Simplify right side
    3,215.22x = 8,066,332.89
  5. Step 5: Solve for x
    x = 8,066,332.89/3,215.22
  6. Step 6: Final answer
    x = 2,508.80

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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.