Home / 3,154.21-4,345.92-2,104.45

Finding the Fourth Proportional to 3,154.21, 4,345.92 and 2,104.45

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Solution

The fourth proportional to 3,154.21, 4,345.92 and 2,104.45 is: 2,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.21 : 4,345.92 = 2,104.45 : x
  2. Step 2: Convert to fraction form
    3,154.21/4,345.92 = 2,104.45/x
  3. Step 3: Cross multiply
    3,154.21x = 4,345.92 × 2,104.45
  4. Step 4: Simplify right side
    3,154.21x = 9,145,760.48
  5. Step 5: Solve for x
    x = 9,145,760.48/3,154.21
  6. Step 6: Final answer
    x = 2,899.54

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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.