Home / 2,736.48-3,774.24-1,688.88

Finding the Fourth Proportional to 2,736.48, 3,774.24 and 1,688.88

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Solution

The fourth proportional to 2,736.48, 3,774.24 and 1,688.88 is: 2,329.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736.48 : 3,774.24 = 1,688.88 : x
  2. Step 2: Convert to fraction form
    2,736.48/3,774.24 = 1,688.88/x
  3. Step 3: Cross multiply
    2,736.48x = 3,774.24 × 1,688.88
  4. Step 4: Simplify right side
    2,736.48x = 6,374,238.45
  5. Step 5: Solve for x
    x = 6,374,238.45/2,736.48
  6. Step 6: Final answer
    x = 2,329.36

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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.