Home / 2,043.09-2,821.07-1,643.46

Finding the Fourth Proportional to 2,043.09, 2,821.07 and 1,643.46

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Solution

The fourth proportional to 2,043.09, 2,821.07 and 1,643.46 is: 2,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,043.09 : 2,821.07 = 1,643.46 : x
  2. Step 2: Convert to fraction form
    2,043.09/2,821.07 = 1,643.46/x
  3. Step 3: Cross multiply
    2,043.09x = 2,821.07 × 1,643.46
  4. Step 4: Simplify right side
    2,043.09x = 4,636,315.70
  5. Step 5: Solve for x
    x = 4,636,315.70/2,043.09
  6. Step 6: Final answer
    x = 2,269.27

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1.5x scale

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.