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Finding the Fourth Proportional to 3,070.94, 4,236.64 and 2,139.98

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Solution

The fourth proportional to 3,070.94, 4,236.64 and 2,139.98 is: 2,952.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.94 : 4,236.64 = 2,139.98 : x
  2. Step 2: Convert to fraction form
    3,070.94/4,236.64 = 2,139.98/x
  3. Step 3: Cross multiply
    3,070.94x = 4,236.64 × 2,139.98
  4. Step 4: Simplify right side
    3,070.94x = 9,066,298.33
  5. Step 5: Solve for x
    x = 9,066,298.33/3,070.94
  6. Step 6: Final answer
    x = 2,952.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.