Home / 1,947.16-2,686.78-1,119

Finding the Fourth Proportional to 1,947.16, 2,686.78 and 1,119

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Solution

The fourth proportional to 1,947.16, 2,686.78 and 1,119 is: 1,544.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.16 : 2,686.78 = 1,119 : x
  2. Step 2: Convert to fraction form
    1,947.16/2,686.78 = 1,119/x
  3. Step 3: Cross multiply
    1,947.16x = 2,686.78 × 1,119
  4. Step 4: Simplify right side
    1,947.16x = 3,006,506.82
  5. Step 5: Solve for x
    x = 3,006,506.82/1,947.16
  6. Step 6: Final answer
    x = 1,544.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.