Home / 1,905.41-2,629.04-1,206.38

Finding the Fourth Proportional to 1,905.41, 2,629.04 and 1,206.38

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Solution

The fourth proportional to 1,905.41, 2,629.04 and 1,206.38 is: 1,664.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.41 : 2,629.04 = 1,206.38 : x
  2. Step 2: Convert to fraction form
    1,905.41/2,629.04 = 1,206.38/x
  3. Step 3: Cross multiply
    1,905.41x = 2,629.04 × 1,206.38
  4. Step 4: Simplify right side
    1,905.41x = 3,171,602.10
  5. Step 5: Solve for x
    x = 3,171,602.10/1,905.41
  6. Step 6: Final answer
    x = 1,664.53

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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.