Home / 2,321.07-3,202.76-1,376.90

Finding the Fourth Proportional to 2,321.07, 3,202.76 and 1,376.90

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Solution

The fourth proportional to 2,321.07, 3,202.76 and 1,376.90 is: 1,899.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.07 : 3,202.76 = 1,376.90 : x
  2. Step 2: Convert to fraction form
    2,321.07/3,202.76 = 1,376.90/x
  3. Step 3: Cross multiply
    2,321.07x = 3,202.76 × 1,376.90
  4. Step 4: Simplify right side
    2,321.07x = 4,409,871.94
  5. Step 5: Solve for x
    x = 4,409,871.94/2,321.07
  6. Step 6: Final answer
    x = 1,899.93

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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.