Home / 3,811.56-5,671.68-3,798.60

Finding the Fourth Proportional to 3,811.56, 5,671.68 and 3,798.60

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Solution

The fourth proportional to 3,811.56, 5,671.68 and 3,798.60 is: 5,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.56 : 5,671.68 = 3,798.60 : x
  2. Step 2: Convert to fraction form
    3,811.56/5,671.68 = 3,798.60/x
  3. Step 3: Cross multiply
    3,811.56x = 5,671.68 × 3,798.60
  4. Step 4: Simplify right side
    3,811.56x = 21,544,443.65
  5. Step 5: Solve for x
    x = 21,544,443.65/3,811.56
  6. Step 6: Final answer
    x = 5,652.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.