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Finding the Fourth Proportional to 2,670.72, 4,006.08 and 2,666.88

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Solution

The fourth proportional to 2,670.72, 4,006.08 and 2,666.88 is: 4,000.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.72 : 4,006.08 = 2,666.88 : x
  2. Step 2: Convert to fraction form
    2,670.72/4,006.08 = 2,666.88/x
  3. Step 3: Cross multiply
    2,670.72x = 4,006.08 × 2,666.88
  4. Step 4: Simplify right side
    2,670.72x = 10,683,734.63
  5. Step 5: Solve for x
    x = 10,683,734.63/2,670.72
  6. Step 6: Final answer
    x = 4,000.32

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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.