Home / 1,911.90-2,846.62-1,901.10

Finding the Fourth Proportional to 1,911.90, 2,846.62 and 1,901.10

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Solution

The fourth proportional to 1,911.90, 2,846.62 and 1,901.10 is: 2,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.90 : 2,846.62 = 1,901.10 : x
  2. Step 2: Convert to fraction form
    1,911.90/2,846.62 = 1,901.10/x
  3. Step 3: Cross multiply
    1,911.90x = 2,846.62 × 1,901.10
  4. Step 4: Simplify right side
    1,911.90x = 5,411,709.28
  5. Step 5: Solve for x
    x = 5,411,709.28/1,911.90
  6. Step 6: Final answer
    x = 2,830.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.