Home / 1,639.44-2,261.54-1,141.22

Finding the Fourth Proportional to 1,639.44, 2,261.54 and 1,141.22

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Solution

The fourth proportional to 1,639.44, 2,261.54 and 1,141.22 is: 1,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.44 : 2,261.54 = 1,141.22 : x
  2. Step 2: Convert to fraction form
    1,639.44/2,261.54 = 1,141.22/x
  3. Step 3: Cross multiply
    1,639.44x = 2,261.54 × 1,141.22
  4. Step 4: Simplify right side
    1,639.44x = 2,580,923.19
  5. Step 5: Solve for x
    x = 2,580,923.19/1,639.44
  6. Step 6: Final answer
    x = 1,574.27

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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.