Home / 1,905.29-2,629.35-1,119.18

Finding the Fourth Proportional to 1,905.29, 2,629.35 and 1,119.18

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Solution

The fourth proportional to 1,905.29, 2,629.35 and 1,119.18 is: 1,544.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.29 : 2,629.35 = 1,119.18 : x
  2. Step 2: Convert to fraction form
    1,905.29/2,629.35 = 1,119.18/x
  3. Step 3: Cross multiply
    1,905.29x = 2,629.35 × 1,119.18
  4. Step 4: Simplify right side
    1,905.29x = 2,942,715.93
  5. Step 5: Solve for x
    x = 2,942,715.93/1,905.29
  6. Step 6: Final answer
    x = 1,544.50

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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.