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Finding the Fourth Proportional to 6,488.91, 9,730.53 and 2,788.83

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Solution

The fourth proportional to 6,488.91, 9,730.53 and 2,788.83 is: 4,182.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488.91 : 9,730.53 = 2,788.83 : x
  2. Step 2: Convert to fraction form
    6,488.91/9,730.53 = 2,788.83/x
  3. Step 3: Cross multiply
    6,488.91x = 9,730.53 × 2,788.83
  4. Step 4: Simplify right side
    6,488.91x = 27,136,793.98
  5. Step 5: Solve for x
    x = 27,136,793.98/6,488.91
  6. Step 6: Final answer
    x = 4,182.03

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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.