Home / 1,699.18-2,355.73-1,639.04

Finding the Fourth Proportional to 1,699.18, 2,355.73 and 1,639.04

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Solution

The fourth proportional to 1,699.18, 2,355.73 and 1,639.04 is: 2,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699.18 : 2,355.73 = 1,639.04 : x
  2. Step 2: Convert to fraction form
    1,699.18/2,355.73 = 1,639.04/x
  3. Step 3: Cross multiply
    1,699.18x = 2,355.73 × 1,639.04
  4. Step 4: Simplify right side
    1,699.18x = 3,861,119.82
  5. Step 5: Solve for x
    x = 3,861,119.82/1,699.18
  6. Step 6: Final answer
    x = 2,272.35

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.