Home / 2,427.78-3,349.56-1,379.64

Finding the Fourth Proportional to 2,427.78, 3,349.56 and 1,379.64

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Solution

The fourth proportional to 2,427.78, 3,349.56 and 1,379.64 is: 1,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.78 : 3,349.56 = 1,379.64 : x
  2. Step 2: Convert to fraction form
    2,427.78/3,349.56 = 1,379.64/x
  3. Step 3: Cross multiply
    2,427.78x = 3,349.56 × 1,379.64
  4. Step 4: Simplify right side
    2,427.78x = 4,621,186.96
  5. Step 5: Solve for x
    x = 4,621,186.96/2,427.78
  6. Step 6: Final answer
    x = 1,903.46

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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.