Home / 1,946.01-2,686-1,107.20

Finding the Fourth Proportional to 1,946.01, 2,686 and 1,107.20

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Solution

The fourth proportional to 1,946.01, 2,686 and 1,107.20 is: 1,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.01 : 2,686 = 1,107.20 : x
  2. Step 2: Convert to fraction form
    1,946.01/2,686 = 1,107.20/x
  3. Step 3: Cross multiply
    1,946.01x = 2,686 × 1,107.20
  4. Step 4: Simplify right side
    1,946.01x = 2,973,939.20
  5. Step 5: Solve for x
    x = 2,973,939.20/1,946.01
  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.