Home / 4,890.79-6,748.63-2,766.61

Finding the Fourth Proportional to 4,890.79, 6,748.63 and 2,766.61

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Solution

The fourth proportional to 4,890.79, 6,748.63 and 2,766.61 is: 3,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.79 : 6,748.63 = 2,766.61 : x
  2. Step 2: Convert to fraction form
    4,890.79/6,748.63 = 2,766.61/x
  3. Step 3: Cross multiply
    4,890.79x = 6,748.63 × 2,766.61
  4. Step 4: Simplify right side
    4,890.79x = 18,670,827.24
  5. Step 5: Solve for x
    x = 18,670,827.24/4,890.79
  6. Step 6: Final answer
    x = 3,817.55

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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.