Home / 3,856.74-5,317.11-2,528.34

Finding the Fourth Proportional to 3,856.74, 5,317.11 and 2,528.34

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Solution

The fourth proportional to 3,856.74, 5,317.11 and 2,528.34 is: 3,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.74 : 5,317.11 = 2,528.34 : x
  2. Step 2: Convert to fraction form
    3,856.74/5,317.11 = 2,528.34/x
  3. Step 3: Cross multiply
    3,856.74x = 5,317.11 × 2,528.34
  4. Step 4: Simplify right side
    3,856.74x = 13,443,461.90
  5. Step 5: Solve for x
    x = 13,443,461.90/3,856.74
  6. Step 6: Final answer
    x = 3,485.71

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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.