Home / 2,391.22-3,580.14-1,291.64

Finding the Fourth Proportional to 2,391.22, 3,580.14 and 1,291.64

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Solution

The fourth proportional to 2,391.22, 3,580.14 and 1,291.64 is: 1,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.22 : 3,580.14 = 1,291.64 : x
  2. Step 2: Convert to fraction form
    2,391.22/3,580.14 = 1,291.64/x
  3. Step 3: Cross multiply
    2,391.22x = 3,580.14 × 1,291.64
  4. Step 4: Simplify right side
    2,391.22x = 4,624,252.03
  5. Step 5: Solve for x
    x = 4,624,252.03/2,391.22
  6. Step 6: Final answer
    x = 1,933.85

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1.5x scale

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.