Home / 1,946.35-2,686.19-1,107.31

Finding the Fourth Proportional to 1,946.35, 2,686.19 and 1,107.31

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Solution

The fourth proportional to 1,946.35, 2,686.19 and 1,107.31 is: 1,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.35 : 2,686.19 = 1,107.31 : x
  2. Step 2: Convert to fraction form
    1,946.35/2,686.19 = 1,107.31/x
  3. Step 3: Cross multiply
    1,946.35x = 2,686.19 × 1,107.31
  4. Step 4: Simplify right side
    1,946.35x = 2,974,445.05
  5. Step 5: Solve for x
    x = 2,974,445.05/1,946.35
  6. Step 6: Final answer
    x = 1,528.22

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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.