Home / 3,931.41-5,425.58-2,253.34

Finding the Fourth Proportional to 3,931.41, 5,425.58 and 2,253.34

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Solution

The fourth proportional to 3,931.41, 5,425.58 and 2,253.34 is: 3,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.41 : 5,425.58 = 2,253.34 : x
  2. Step 2: Convert to fraction form
    3,931.41/5,425.58 = 2,253.34/x
  3. Step 3: Cross multiply
    3,931.41x = 5,425.58 × 2,253.34
  4. Step 4: Simplify right side
    3,931.41x = 12,225,676.44
  5. Step 5: Solve for x
    x = 12,225,676.44/3,931.41
  6. Step 6: Final answer
    x = 3,109.74

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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.