Home / 1,769.18-2,442.42-1,628.64

Finding the Fourth Proportional to 1,769.18, 2,442.42 and 1,628.64

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Solution

The fourth proportional to 1,769.18, 2,442.42 and 1,628.64 is: 2,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.18 : 2,442.42 = 1,628.64 : x
  2. Step 2: Convert to fraction form
    1,769.18/2,442.42 = 1,628.64/x
  3. Step 3: Cross multiply
    1,769.18x = 2,442.42 × 1,628.64
  4. Step 4: Simplify right side
    1,769.18x = 3,977,822.91
  5. Step 5: Solve for x
    x = 3,977,822.91/1,769.18
  6. Step 6: Final answer
    x = 2,248.41

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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.