Home / 2,143.44-2,957.81-1,199.19

Finding the Fourth Proportional to 2,143.44, 2,957.81 and 1,199.19

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Solution

The fourth proportional to 2,143.44, 2,957.81 and 1,199.19 is: 1,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.44 : 2,957.81 = 1,199.19 : x
  2. Step 2: Convert to fraction form
    2,143.44/2,957.81 = 1,199.19/x
  3. Step 3: Cross multiply
    2,143.44x = 2,957.81 × 1,199.19
  4. Step 4: Simplify right side
    2,143.44x = 3,546,970.18
  5. Step 5: Solve for x
    x = 3,546,970.18/2,143.44
  6. Step 6: Final answer
    x = 1,654.80

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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.