Home / 4,890.87-6,749.28-2,766.51

Finding the Fourth Proportional to 4,890.87, 6,749.28 and 2,766.51

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Solution

The fourth proportional to 4,890.87, 6,749.28 and 2,766.51 is: 3,817.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.87 : 6,749.28 = 2,766.51 : x
  2. Step 2: Convert to fraction form
    4,890.87/6,749.28 = 2,766.51/x
  3. Step 3: Cross multiply
    4,890.87x = 6,749.28 × 2,766.51
  4. Step 4: Simplify right side
    4,890.87x = 18,671,950.61
  5. Step 5: Solve for x
    x = 18,671,950.61/4,890.87
  6. Step 6: Final answer
    x = 3,817.72

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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.