Home / 1,947.55-2,927.40-1,911.10

Finding the Fourth Proportional to 1,947.55, 2,927.40 and 1,911.10

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Solution

The fourth proportional to 1,947.55, 2,927.40 and 1,911.10 is: 2,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.55 : 2,927.40 = 1,911.10 : x
  2. Step 2: Convert to fraction form
    1,947.55/2,927.40 = 1,911.10/x
  3. Step 3: Cross multiply
    1,947.55x = 2,927.40 × 1,911.10
  4. Step 4: Simplify right side
    1,947.55x = 5,594,554.14
  5. Step 5: Solve for x
    x = 5,594,554.14/1,947.55
  6. Step 6: Final answer
    x = 2,872.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.