Home / 2,905.57-4,008.72-1,646.47

Finding the Fourth Proportional to 2,905.57, 4,008.72 and 1,646.47

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Solution

The fourth proportional to 2,905.57, 4,008.72 and 1,646.47 is: 2,271.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.57 : 4,008.72 = 1,646.47 : x
  2. Step 2: Convert to fraction form
    2,905.57/4,008.72 = 1,646.47/x
  3. Step 3: Cross multiply
    2,905.57x = 4,008.72 × 1,646.47
  4. Step 4: Simplify right side
    2,905.57x = 6,600,237.22
  5. Step 5: Solve for x
    x = 6,600,237.22/2,905.57
  6. Step 6: Final answer
    x = 2,271.58

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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.