Home / 6,427.15-9,641.48-1,984.96

Finding the Fourth Proportional to 6,427.15, 9,641.48 and 1,984.96

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Solution

The fourth proportional to 6,427.15, 9,641.48 and 1,984.96 is: 2,977.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.15 : 9,641.48 = 1,984.96 : x
  2. Step 2: Convert to fraction form
    6,427.15/9,641.48 = 1,984.96/x
  3. Step 3: Cross multiply
    6,427.15x = 9,641.48 × 1,984.96
  4. Step 4: Simplify right side
    6,427.15x = 19,137,911.20
  5. Step 5: Solve for x
    x = 19,137,911.20/6,427.15
  6. Step 6: Final answer
    x = 2,977.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.