Home / 1,911.56-2,637.06-1,203.08

Finding the Fourth Proportional to 1,911.56, 2,637.06 and 1,203.08

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Solution

The fourth proportional to 1,911.56, 2,637.06 and 1,203.08 is: 1,659.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.56 : 2,637.06 = 1,203.08 : x
  2. Step 2: Convert to fraction form
    1,911.56/2,637.06 = 1,203.08/x
  3. Step 3: Cross multiply
    1,911.56x = 2,637.06 × 1,203.08
  4. Step 4: Simplify right side
    1,911.56x = 3,172,594.14
  5. Step 5: Solve for x
    x = 3,172,594.14/1,911.56
  6. Step 6: Final answer
    x = 1,659.69

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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.