Home / 2,117.06-2,921.54-1,185.56

Finding the Fourth Proportional to 2,117.06, 2,921.54 and 1,185.56

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Solution

The fourth proportional to 2,117.06, 2,921.54 and 1,185.56 is: 1,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.06 : 2,921.54 = 1,185.56 : x
  2. Step 2: Convert to fraction form
    2,117.06/2,921.54 = 1,185.56/x
  3. Step 3: Cross multiply
    2,117.06x = 2,921.54 × 1,185.56
  4. Step 4: Simplify right side
    2,117.06x = 3,463,660.96
  5. Step 5: Solve for x
    x = 3,463,660.96/2,117.06
  6. Step 6: Final answer
    x = 1,636.07

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1.5x scale

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.