Home / 3,911.36-5,396.16-2,585.84

Finding the Fourth Proportional to 3,911.36, 5,396.16 and 2,585.84

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Solution

The fourth proportional to 3,911.36, 5,396.16 and 2,585.84 is: 3,567.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.36 : 5,396.16 = 2,585.84 : x
  2. Step 2: Convert to fraction form
    3,911.36/5,396.16 = 2,585.84/x
  3. Step 3: Cross multiply
    3,911.36x = 5,396.16 × 2,585.84
  4. Step 4: Simplify right side
    3,911.36x = 13,953,606.37
  5. Step 5: Solve for x
    x = 13,953,606.37/3,911.36
  6. Step 6: Final answer
    x = 3,567.46

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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.