Home / 1,664.10-2,493.03-1,391.94

Finding the Fourth Proportional to 1,664.10, 2,493.03 and 1,391.94

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Solution

The fourth proportional to 1,664.10, 2,493.03 and 1,391.94 is: 2,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.10 : 2,493.03 = 1,391.94 : x
  2. Step 2: Convert to fraction form
    1,664.10/2,493.03 = 1,391.94/x
  3. Step 3: Cross multiply
    1,664.10x = 2,493.03 × 1,391.94
  4. Step 4: Simplify right side
    1,664.10x = 3,470,148.18
  5. Step 5: Solve for x
    x = 3,470,148.18/1,664.10
  6. Step 6: Final answer
    x = 2,085.30

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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.