Home / 2,195.17-3,028.35-1,310.45

Finding the Fourth Proportional to 2,195.17, 3,028.35 and 1,310.45

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Solution

The fourth proportional to 2,195.17, 3,028.35 and 1,310.45 is: 1,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.17 : 3,028.35 = 1,310.45 : x
  2. Step 2: Convert to fraction form
    2,195.17/3,028.35 = 1,310.45/x
  3. Step 3: Cross multiply
    2,195.17x = 3,028.35 × 1,310.45
  4. Step 4: Simplify right side
    2,195.17x = 3,968,491.03
  5. Step 5: Solve for x
    x = 3,968,491.03/2,195.17
  6. Step 6: Final answer
    x = 1,807.83

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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.