Home / 3,120.82-4,307.64-1,795.24

Finding the Fourth Proportional to 3,120.82, 4,307.64 and 1,795.24

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Solution

The fourth proportional to 3,120.82, 4,307.64 and 1,795.24 is: 2,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.82 : 4,307.64 = 1,795.24 : x
  2. Step 2: Convert to fraction form
    3,120.82/4,307.64 = 1,795.24/x
  3. Step 3: Cross multiply
    3,120.82x = 4,307.64 × 1,795.24
  4. Step 4: Simplify right side
    3,120.82x = 7,733,247.63
  5. Step 5: Solve for x
    x = 7,733,247.63/3,120.82
  6. Step 6: Final answer
    x = 2,477.95

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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.