Home / 2,905.42-4,009.14-1,646.62

Finding the Fourth Proportional to 2,905.42, 4,009.14 and 1,646.62

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Solution

The fourth proportional to 2,905.42, 4,009.14 and 1,646.62 is: 2,272.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.42 : 4,009.14 = 1,646.62 : x
  2. Step 2: Convert to fraction form
    2,905.42/4,009.14 = 1,646.62/x
  3. Step 3: Cross multiply
    2,905.42x = 4,009.14 × 1,646.62
  4. Step 4: Simplify right side
    2,905.42x = 6,601,530.11
  5. Step 5: Solve for x
    x = 6,601,530.11/2,905.42
  6. Step 6: Final answer
    x = 2,272.14

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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.