Home / 2,749.64-3,795.84-1,853.60

Finding the Fourth Proportional to 2,749.64, 3,795.84 and 1,853.60

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Solution

The fourth proportional to 2,749.64, 3,795.84 and 1,853.60 is: 2,558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.64 : 3,795.84 = 1,853.60 : x
  2. Step 2: Convert to fraction form
    2,749.64/3,795.84 = 1,853.60/x
  3. Step 3: Cross multiply
    2,749.64x = 3,795.84 × 1,853.60
  4. Step 4: Simplify right side
    2,749.64x = 7,035,969.02
  5. Step 5: Solve for x
    x = 7,035,969.02/2,749.64
  6. Step 6: Final answer
    x = 2,558.87

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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.