Home / 2,297.88-3,171.28-1,353.68

Finding the Fourth Proportional to 2,297.88, 3,171.28 and 1,353.68

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Solution

The fourth proportional to 2,297.88, 3,171.28 and 1,353.68 is: 1,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,297.88 : 3,171.28 = 1,353.68 : x
  2. Step 2: Convert to fraction form
    2,297.88/3,171.28 = 1,353.68/x
  3. Step 3: Cross multiply
    2,297.88x = 3,171.28 × 1,353.68
  4. Step 4: Simplify right side
    2,297.88x = 4,292,898.31
  5. Step 5: Solve for x
    x = 4,292,898.31/2,297.88
  6. Step 6: Final answer
    x = 1,868.20

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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.