Home / 3,618.34-5,427.51-1,886.56

Finding the Fourth Proportional to 3,618.34, 5,427.51 and 1,886.56

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Solution

The fourth proportional to 3,618.34, 5,427.51 and 1,886.56 is: 2,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.34 : 5,427.51 = 1,886.56 : x
  2. Step 2: Convert to fraction form
    3,618.34/5,427.51 = 1,886.56/x
  3. Step 3: Cross multiply
    3,618.34x = 5,427.51 × 1,886.56
  4. Step 4: Simplify right side
    3,618.34x = 10,239,323.27
  5. Step 5: Solve for x
    x = 10,239,323.27/3,618.34
  6. Step 6: Final answer
    x = 2,829.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.