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Finding the Fourth Proportional to 3,076.60, 4,156.65 and 3,076.60

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Solution

The fourth proportional to 3,076.60, 4,156.65 and 3,076.60 is: 4,156.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.60 : 4,156.65 = 3,076.60 : x
  2. Step 2: Convert to fraction form
    3,076.60/4,156.65 = 3,076.60/x
  3. Step 3: Cross multiply
    3,076.60x = 4,156.65 × 3,076.60
  4. Step 4: Simplify right side
    3,076.60x = 12,788,349.39
  5. Step 5: Solve for x
    x = 12,788,349.39/3,076.60
  6. Step 6: Final answer
    x = 4,156.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.