Home / 2,158.26-3,235.21-841.19

Finding the Fourth Proportional to 2,158.26, 3,235.21 and 841.19

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Solution

The fourth proportional to 2,158.26, 3,235.21 and 841.19 is: 1,260.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.26 : 3,235.21 = 841.19 : x
  2. Step 2: Convert to fraction form
    2,158.26/3,235.21 = 841.19/x
  3. Step 3: Cross multiply
    2,158.26x = 3,235.21 × 841.19
  4. Step 4: Simplify right side
    2,158.26x = 2,721,416.11
  5. Step 5: Solve for x
    x = 2,721,416.11/2,158.26
  6. Step 6: Final answer
    x = 1,260.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.