Home / 2,631.36-3,944.04-1,330.08

Finding the Fourth Proportional to 2,631.36, 3,944.04 and 1,330.08

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Solution

The fourth proportional to 2,631.36, 3,944.04 and 1,330.08 is: 1,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.36 : 3,944.04 = 1,330.08 : x
  2. Step 2: Convert to fraction form
    2,631.36/3,944.04 = 1,330.08/x
  3. Step 3: Cross multiply
    2,631.36x = 3,944.04 × 1,330.08
  4. Step 4: Simplify right side
    2,631.36x = 5,245,888.72
  5. Step 5: Solve for x
    x = 5,245,888.72/2,631.36
  6. Step 6: Final answer
    x = 1,993.60

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1.5x scale

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.