Home / 6,431.16-8,876.48-3,779.44

Finding the Fourth Proportional to 6,431.16, 8,876.48 and 3,779.44

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Solution

The fourth proportional to 6,431.16, 8,876.48 and 3,779.44 is: 5,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.16 : 8,876.48 = 3,779.44 : x
  2. Step 2: Convert to fraction form
    6,431.16/8,876.48 = 3,779.44/x
  3. Step 3: Cross multiply
    6,431.16x = 8,876.48 × 3,779.44
  4. Step 4: Simplify right side
    6,431.16x = 33,548,123.57
  5. Step 5: Solve for x
    x = 33,548,123.57/6,431.16
  6. Step 6: Final answer
    x = 5,216.50

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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.