Home / 2,173.20-2,999.49-1,376.01

Finding the Fourth Proportional to 2,173.20, 2,999.49 and 1,376.01

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Solution

The fourth proportional to 2,173.20, 2,999.49 and 1,376.01 is: 1,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.20 : 2,999.49 = 1,376.01 : x
  2. Step 2: Convert to fraction form
    2,173.20/2,999.49 = 1,376.01/x
  3. Step 3: Cross multiply
    2,173.20x = 2,999.49 × 1,376.01
  4. Step 4: Simplify right side
    2,173.20x = 4,127,328.23
  5. Step 5: Solve for x
    x = 4,127,328.23/2,173.20
  6. Step 6: Final answer
    x = 1,899.19

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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.