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Finding the Fourth Proportional to 6,363.87, 8,779.91 and 3,710.72

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Solution

The fourth proportional to 6,363.87, 8,779.91 and 3,710.72 is: 5,119.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,363.87 : 8,779.91 = 3,710.72 : x
  2. Step 2: Convert to fraction form
    6,363.87/8,779.91 = 3,710.72/x
  3. Step 3: Cross multiply
    6,363.87x = 8,779.91 × 3,710.72
  4. Step 4: Simplify right side
    6,363.87x = 32,579,725.18
  5. Step 5: Solve for x
    x = 32,579,725.18/6,363.87
  6. Step 6: Final answer
    x = 5,119.48

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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.