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Finding the Fourth Proportional to 2,908.60, 4,014.80 and 1,860.67

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Solution

The fourth proportional to 2,908.60, 4,014.80 and 1,860.67 is: 2,568.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.60 : 4,014.80 = 1,860.67 : x
  2. Step 2: Convert to fraction form
    2,908.60/4,014.80 = 1,860.67/x
  3. Step 3: Cross multiply
    2,908.60x = 4,014.80 × 1,860.67
  4. Step 4: Simplify right side
    2,908.60x = 7,470,217.92
  5. Step 5: Solve for x
    x = 7,470,217.92/2,908.60
  6. Step 6: Final answer
    x = 2,568.32

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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.