Home / 1,620.84-2,236.95-1,569.81

Finding the Fourth Proportional to 1,620.84, 2,236.95 and 1,569.81

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Solution

The fourth proportional to 1,620.84, 2,236.95 and 1,569.81 is: 2,166.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.84 : 2,236.95 = 1,569.81 : x
  2. Step 2: Convert to fraction form
    1,620.84/2,236.95 = 1,569.81/x
  3. Step 3: Cross multiply
    1,620.84x = 2,236.95 × 1,569.81
  4. Step 4: Simplify right side
    1,620.84x = 3,511,586.48
  5. Step 5: Solve for x
    x = 3,511,586.48/1,620.84
  6. Step 6: Final answer
    x = 2,166.52

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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.