Home / 5,186.22-7,156.71-3,865.74

Finding the Fourth Proportional to 5,186.22, 7,156.71 and 3,865.74

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Solution

The fourth proportional to 5,186.22, 7,156.71 and 3,865.74 is: 5,334.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.22 : 7,156.71 = 3,865.74 : x
  2. Step 2: Convert to fraction form
    5,186.22/7,156.71 = 3,865.74/x
  3. Step 3: Cross multiply
    5,186.22x = 7,156.71 × 3,865.74
  4. Step 4: Simplify right side
    5,186.22x = 27,665,980.12
  5. Step 5: Solve for x
    x = 27,665,980.12/5,186.22
  6. Step 6: Final answer
    x = 5,334.52

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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.