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Finding the Fourth Proportional to 2,310.77, 3,465.65 and 666.88

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Solution

The fourth proportional to 2,310.77, 3,465.65 and 666.88 is: 1,000.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.77 : 3,465.65 = 666.88 : x
  2. Step 2: Convert to fraction form
    2,310.77/3,465.65 = 666.88/x
  3. Step 3: Cross multiply
    2,310.77x = 3,465.65 × 666.88
  4. Step 4: Simplify right side
    2,310.77x = 2,311,172.67
  5. Step 5: Solve for x
    x = 2,311,172.67/2,310.77
  6. Step 6: Final answer
    x = 1,000.17

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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.