Home / 2,972.63-4,102.11-1,646.26

Finding the Fourth Proportional to 2,972.63, 4,102.11 and 1,646.26

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Solution

The fourth proportional to 2,972.63, 4,102.11 and 1,646.26 is: 2,271.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.63 : 4,102.11 = 1,646.26 : x
  2. Step 2: Convert to fraction form
    2,972.63/4,102.11 = 1,646.26/x
  3. Step 3: Cross multiply
    2,972.63x = 4,102.11 × 1,646.26
  4. Step 4: Simplify right side
    2,972.63x = 6,753,129.35
  5. Step 5: Solve for x
    x = 6,753,129.35/2,972.63
  6. Step 6: Final answer
    x = 2,271.77

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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.