Home / 1,620.84-2,237.61-1,149.12

Finding the Fourth Proportional to 1,620.84, 2,237.61 and 1,149.12

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Solution

The fourth proportional to 1,620.84, 2,237.61 and 1,149.12 is: 1,586.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.84 : 2,237.61 = 1,149.12 : x
  2. Step 2: Convert to fraction form
    1,620.84/2,237.61 = 1,149.12/x
  3. Step 3: Cross multiply
    1,620.84x = 2,237.61 × 1,149.12
  4. Step 4: Simplify right side
    1,620.84x = 2,571,282.40
  5. Step 5: Solve for x
    x = 2,571,282.40/1,620.84
  6. Step 6: Final answer
    x = 1,586.39

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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.