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Finding the Fourth Proportional to 5,878.91, 8,818.87 and 1,928.98

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Solution

The fourth proportional to 5,878.91, 8,818.87 and 1,928.98 is: 2,893.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.91 : 8,818.87 = 1,928.98 : x
  2. Step 2: Convert to fraction form
    5,878.91/8,818.87 = 1,928.98/x
  3. Step 3: Cross multiply
    5,878.91x = 8,818.87 × 1,928.98
  4. Step 4: Simplify right side
    5,878.91x = 17,011,396.98
  5. Step 5: Solve for x
    x = 17,011,396.98/5,878.91
  6. Step 6: Final answer
    x = 2,893.63

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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.