Home / 1,396.04-2,094.19-421.97

Finding the Fourth Proportional to 1,396.04, 2,094.19 and 421.97

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Solution

The fourth proportional to 1,396.04, 2,094.19 and 421.97 is: 632.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.04 : 2,094.19 = 421.97 : x
  2. Step 2: Convert to fraction form
    1,396.04/2,094.19 = 421.97/x
  3. Step 3: Cross multiply
    1,396.04x = 2,094.19 × 421.97
  4. Step 4: Simplify right side
    1,396.04x = 883,673.83
  5. Step 5: Solve for x
    x = 883,673.83/1,396.04
  6. Step 6: Final answer
    x = 632.99

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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.