Home / 1,949.70-2,690.63-1,065.54

Finding the Fourth Proportional to 1,949.70, 2,690.63 and 1,065.54

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Solution

The fourth proportional to 1,949.70, 2,690.63 and 1,065.54 is: 1,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.70 : 2,690.63 = 1,065.54 : x
  2. Step 2: Convert to fraction form
    1,949.70/2,690.63 = 1,065.54/x
  3. Step 3: Cross multiply
    1,949.70x = 2,690.63 × 1,065.54
  4. Step 4: Simplify right side
    1,949.70x = 2,866,968.56
  5. Step 5: Solve for x
    x = 2,866,968.56/1,949.70
  6. Step 6: Final answer
    x = 1,470.47

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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.