Home / 2,231.84-3,079.96-1,237.19

Finding the Fourth Proportional to 2,231.84, 3,079.96 and 1,237.19

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Solution

The fourth proportional to 2,231.84, 3,079.96 and 1,237.19 is: 1,707.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.84 : 3,079.96 = 1,237.19 : x
  2. Step 2: Convert to fraction form
    2,231.84/3,079.96 = 1,237.19/x
  3. Step 3: Cross multiply
    2,231.84x = 3,079.96 × 1,237.19
  4. Step 4: Simplify right side
    2,231.84x = 3,810,477.22
  5. Step 5: Solve for x
    x = 3,810,477.22/2,231.84
  6. Step 6: Final answer
    x = 1,707.32

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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.