Home / 2,174.36-2,999.61-1,428.04

Finding the Fourth Proportional to 2,174.36, 2,999.61 and 1,428.04

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Solution

The fourth proportional to 2,174.36, 2,999.61 and 1,428.04 is: 1,970.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.36 : 2,999.61 = 1,428.04 : x
  2. Step 2: Convert to fraction form
    2,174.36/2,999.61 = 1,428.04/x
  3. Step 3: Cross multiply
    2,174.36x = 2,999.61 × 1,428.04
  4. Step 4: Simplify right side
    2,174.36x = 4,283,567.02
  5. Step 5: Solve for x
    x = 4,283,567.02/2,174.36
  6. Step 6: Final answer
    x = 1,970.04

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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.