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Finding the Fourth Proportional to 2,666.84, 4,002.60 and 2,230.70

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Solution

The fourth proportional to 2,666.84, 4,002.60 and 2,230.70 is: 3,348.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.84 : 4,002.60 = 2,230.70 : x
  2. Step 2: Convert to fraction form
    2,666.84/4,002.60 = 2,230.70/x
  3. Step 3: Cross multiply
    2,666.84x = 4,002.60 × 2,230.70
  4. Step 4: Simplify right side
    2,666.84x = 8,928,599.82
  5. Step 5: Solve for x
    x = 8,928,599.82/2,666.84
  6. Step 6: Final answer
    x = 3,348.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.