Home / 5,185.41-7,156.47-2,886.03

Finding the Fourth Proportional to 5,185.41, 7,156.47 and 2,886.03

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Solution

The fourth proportional to 5,185.41, 7,156.47 and 2,886.03 is: 3,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.41 : 7,156.47 = 2,886.03 : x
  2. Step 2: Convert to fraction form
    5,185.41/7,156.47 = 2,886.03/x
  3. Step 3: Cross multiply
    5,185.41x = 7,156.47 × 2,886.03
  4. Step 4: Simplify right side
    5,185.41x = 20,653,772.68
  5. Step 5: Solve for x
    x = 20,653,772.68/5,185.41
  6. Step 6: Final answer
    x = 3,983.05

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Half scale
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Double scale
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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.