Home / 2,173.44-2,999.36-1,178.75

Finding the Fourth Proportional to 2,173.44, 2,999.36 and 1,178.75

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Solution

The fourth proportional to 2,173.44, 2,999.36 and 1,178.75 is: 1,626.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.44 : 2,999.36 = 1,178.75 : x
  2. Step 2: Convert to fraction form
    2,173.44/2,999.36 = 1,178.75/x
  3. Step 3: Cross multiply
    2,173.44x = 2,999.36 × 1,178.75
  4. Step 4: Simplify right side
    2,173.44x = 3,535,474.71
  5. Step 5: Solve for x
    x = 3,535,474.71/2,173.44
  6. Step 6: Final answer
    x = 1,626.67

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1.5x scale

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.