Home / 2,173.18-2,999.03-1,178.50

Finding the Fourth Proportional to 2,173.18, 2,999.03 and 1,178.50

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Solution

The fourth proportional to 2,173.18, 2,999.03 and 1,178.50 is: 1,626.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.18 : 2,999.03 = 1,178.50 : x
  2. Step 2: Convert to fraction form
    2,173.18/2,999.03 = 1,178.50/x
  3. Step 3: Cross multiply
    2,173.18x = 2,999.03 × 1,178.50
  4. Step 4: Simplify right side
    2,173.18x = 3,534,349.09
  5. Step 5: Solve for x
    x = 3,534,349.09/2,173.18
  6. Step 6: Final answer
    x = 1,626.35

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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.