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Finding the Fourth Proportional to 2,011.68, 3,015.96 and 900.48

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Solution

The fourth proportional to 2,011.68, 3,015.96 and 900.48 is: 1,350.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.68 : 3,015.96 = 900.48 : x
  2. Step 2: Convert to fraction form
    2,011.68/3,015.96 = 900.48/x
  3. Step 3: Cross multiply
    2,011.68x = 3,015.96 × 900.48
  4. Step 4: Simplify right side
    2,011.68x = 2,715,811.66
  5. Step 5: Solve for x
    x = 2,715,811.66/2,011.68
  6. Step 6: Final answer
    x = 1,350.02

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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.