Home / 3,935.75-5,431.24-2,257.05

Finding the Fourth Proportional to 3,935.75, 5,431.24 and 2,257.05

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Solution

The fourth proportional to 3,935.75, 5,431.24 and 2,257.05 is: 3,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.75 : 5,431.24 = 2,257.05 : x
  2. Step 2: Convert to fraction form
    3,935.75/5,431.24 = 2,257.05/x
  3. Step 3: Cross multiply
    3,935.75x = 5,431.24 × 2,257.05
  4. Step 4: Simplify right side
    3,935.75x = 12,258,547.16
  5. Step 5: Solve for x
    x = 12,258,547.16/3,935.75
  6. Step 6: Final answer
    x = 3,114.67

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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.