Home / 1,664.69-2,497.88-1,277.18

Finding the Fourth Proportional to 1,664.69, 2,497.88 and 1,277.18

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Solution

The fourth proportional to 1,664.69, 2,497.88 and 1,277.18 is: 1,916.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.69 : 2,497.88 = 1,277.18 : x
  2. Step 2: Convert to fraction form
    1,664.69/2,497.88 = 1,277.18/x
  3. Step 3: Cross multiply
    1,664.69x = 2,497.88 × 1,277.18
  4. Step 4: Simplify right side
    1,664.69x = 3,190,242.38
  5. Step 5: Solve for x
    x = 3,190,242.38/1,664.69
  6. Step 6: Final answer
    x = 1,916.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.