Home / 6,433.55-8,876.49-3,779.99

Finding the Fourth Proportional to 6,433.55, 8,876.49 and 3,779.99

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Solution

The fourth proportional to 6,433.55, 8,876.49 and 3,779.99 is: 5,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,433.55 : 8,876.49 = 3,779.99 : x
  2. Step 2: Convert to fraction form
    6,433.55/8,876.49 = 3,779.99/x
  3. Step 3: Cross multiply
    6,433.55x = 8,876.49 × 3,779.99
  4. Step 4: Simplify right side
    6,433.55x = 33,553,043.44
  5. Step 5: Solve for x
    x = 33,553,043.44/6,433.55
  6. Step 6: Final answer
    x = 5,215.32

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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.