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Finding the Fourth Proportional to 2,666.72, 4,000.08 and 934.94

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Solution

The fourth proportional to 2,666.72, 4,000.08 and 934.94 is: 1,402.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.72 : 4,000.08 = 934.94 : x
  2. Step 2: Convert to fraction form
    2,666.72/4,000.08 = 934.94/x
  3. Step 3: Cross multiply
    2,666.72x = 4,000.08 × 934.94
  4. Step 4: Simplify right side
    2,666.72x = 3,739,814.79
  5. Step 5: Solve for x
    x = 3,739,814.79/2,666.72
  6. Step 6: Final answer
    x = 1,402.41

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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.