Home / 3,156.49-4,353.74-2,681.11

Finding the Fourth Proportional to 3,156.49, 4,353.74 and 2,681.11

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Solution

The fourth proportional to 3,156.49, 4,353.74 and 2,681.11 is: 3,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.49 : 4,353.74 = 2,681.11 : x
  2. Step 2: Convert to fraction form
    3,156.49/4,353.74 = 2,681.11/x
  3. Step 3: Cross multiply
    3,156.49x = 4,353.74 × 2,681.11
  4. Step 4: Simplify right side
    3,156.49x = 11,672,834.08
  5. Step 5: Solve for x
    x = 11,672,834.08/3,156.49
  6. Step 6: Final answer
    x = 3,698.05

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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.