Home / 4,811.76-6,640.20-2,716.56

Finding the Fourth Proportional to 4,811.76, 6,640.20 and 2,716.56

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Solution

The fourth proportional to 4,811.76, 6,640.20 and 2,716.56 is: 3,748.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.76 : 6,640.20 = 2,716.56 : x
  2. Step 2: Convert to fraction form
    4,811.76/6,640.20 = 2,716.56/x
  3. Step 3: Cross multiply
    4,811.76x = 6,640.20 × 2,716.56
  4. Step 4: Simplify right side
    4,811.76x = 18,038,501.71
  5. Step 5: Solve for x
    x = 18,038,501.71/4,811.76
  6. Step 6: Final answer
    x = 3,748.84

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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.