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Finding the Fourth Proportional to 2,666.62, 3,999.93 and 1,001.13

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Solution

The fourth proportional to 2,666.62, 3,999.93 and 1,001.13 is: 1,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.62 : 3,999.93 = 1,001.13 : x
  2. Step 2: Convert to fraction form
    2,666.62/3,999.93 = 1,001.13/x
  3. Step 3: Cross multiply
    2,666.62x = 3,999.93 × 1,001.13
  4. Step 4: Simplify right side
    2,666.62x = 4,004,449.92
  5. Step 5: Solve for x
    x = 4,004,449.92/2,666.62
  6. Step 6: Final answer
    x = 1,501.70

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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.