Home / 2,170.34-3,250.64-1,681.91

Finding the Fourth Proportional to 2,170.34, 3,250.64 and 1,681.91

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Solution

The fourth proportional to 2,170.34, 3,250.64 and 1,681.91 is: 2,519.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.34 : 3,250.64 = 1,681.91 : x
  2. Step 2: Convert to fraction form
    2,170.34/3,250.64 = 1,681.91/x
  3. Step 3: Cross multiply
    2,170.34x = 3,250.64 × 1,681.91
  4. Step 4: Simplify right side
    2,170.34x = 5,467,283.92
  5. Step 5: Solve for x
    x = 5,467,283.92/2,170.34
  6. Step 6: Final answer
    x = 2,519.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.