Home / 2,623.03-3,619.87-1,428.06

Finding the Fourth Proportional to 2,623.03, 3,619.87 and 1,428.06

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Solution

The fourth proportional to 2,623.03, 3,619.87 and 1,428.06 is: 1,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.03 : 3,619.87 = 1,428.06 : x
  2. Step 2: Convert to fraction form
    2,623.03/3,619.87 = 1,428.06/x
  3. Step 3: Cross multiply
    2,623.03x = 3,619.87 × 1,428.06
  4. Step 4: Simplify right side
    2,623.03x = 5,169,366.31
  5. Step 5: Solve for x
    x = 5,169,366.31/2,623.03
  6. Step 6: Final answer
    x = 1,970.77

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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.