Home / 7,723.91-10,659.68-4,890.99

Finding the Fourth Proportional to 7,723.91, 10,659.68 and 4,890.99

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Solution

The fourth proportional to 7,723.91, 10,659.68 and 4,890.99 is: 6,749.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.91 : 10,659.68 = 4,890.99 : x
  2. Step 2: Convert to fraction form
    7,723.91/10,659.68 = 4,890.99/x
  3. Step 3: Cross multiply
    7,723.91x = 10,659.68 × 4,890.99
  4. Step 4: Simplify right side
    7,723.91x = 52,136,363.83
  5. Step 5: Solve for x
    x = 52,136,363.83/7,723.91
  6. Step 6: Final answer
    x = 6,749.99

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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.