Home / 4,268.64-5,878.56-3,918.72

Finding the Fourth Proportional to 4,268.64, 5,878.56 and 3,918.72

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Solution

The fourth proportional to 4,268.64, 5,878.56 and 3,918.72 is: 5,396.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268.64 : 5,878.56 = 3,918.72 : x
  2. Step 2: Convert to fraction form
    4,268.64/5,878.56 = 3,918.72/x
  3. Step 3: Cross multiply
    4,268.64x = 5,878.56 × 3,918.72
  4. Step 4: Simplify right side
    4,268.64x = 23,036,430.64
  5. Step 5: Solve for x
    x = 23,036,430.64/4,268.64
  6. Step 6: Final answer
    x = 5,396.67

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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.