Home / 6,419.10-8,858.70-3,766.74

Finding the Fourth Proportional to 6,419.10, 8,858.70 and 3,766.74

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Solution

The fourth proportional to 6,419.10, 8,858.70 and 3,766.74 is: 5,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.10 : 8,858.70 = 3,766.74 : x
  2. Step 2: Convert to fraction form
    6,419.10/8,858.70 = 3,766.74/x
  3. Step 3: Cross multiply
    6,419.10x = 8,858.70 × 3,766.74
  4. Step 4: Simplify right side
    6,419.10x = 33,368,419.64
  5. Step 5: Solve for x
    x = 33,368,419.64/6,419.10
  6. Step 6: Final answer
    x = 5,198.30

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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.