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Finding the Fourth Proportional to 2,974.51, 4,104.64 and 1,648.13

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Solution

The fourth proportional to 2,974.51, 4,104.64 and 1,648.13 is: 2,274.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.51 : 4,104.64 = 1,648.13 : x
  2. Step 2: Convert to fraction form
    2,974.51/4,104.64 = 1,648.13/x
  3. Step 3: Cross multiply
    2,974.51x = 4,104.64 × 1,648.13
  4. Step 4: Simplify right side
    2,974.51x = 6,764,980.32
  5. Step 5: Solve for x
    x = 6,764,980.32/2,974.51
  6. Step 6: Final answer
    x = 2,274.32

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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.