Home / 1,760.62-2,643.60-1,398.35

Finding the Fourth Proportional to 1,760.62, 2,643.60 and 1,398.35

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Solution

The fourth proportional to 1,760.62, 2,643.60 and 1,398.35 is: 2,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.62 : 2,643.60 = 1,398.35 : x
  2. Step 2: Convert to fraction form
    1,760.62/2,643.60 = 1,398.35/x
  3. Step 3: Cross multiply
    1,760.62x = 2,643.60 × 1,398.35
  4. Step 4: Simplify right side
    1,760.62x = 3,696,678.06
  5. Step 5: Solve for x
    x = 3,696,678.06/1,760.62
  6. Step 6: Final answer
    x = 2,099.65

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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.