Home / 9,131.44-13,695.72-2,974

Finding the Fourth Proportional to 9,131.44, 13,695.72 and 2,974

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Solution

The fourth proportional to 9,131.44, 13,695.72 and 2,974 is: 4,460.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.44 : 13,695.72 = 2,974 : x
  2. Step 2: Convert to fraction form
    9,131.44/13,695.72 = 2,974/x
  3. Step 3: Cross multiply
    9,131.44x = 13,695.72 × 2,974
  4. Step 4: Simplify right side
    9,131.44x = 40,731,071.28
  5. Step 5: Solve for x
    x = 40,731,071.28/9,131.44
  6. Step 6: Final answer
    x = 4,460.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.