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Finding the Fourth Proportional to 1,890.89, 2,838.08 and 967.10

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Solution

The fourth proportional to 1,890.89, 2,838.08 and 967.10 is: 1,451.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.89 : 2,838.08 = 967.10 : x
  2. Step 2: Convert to fraction form
    1,890.89/2,838.08 = 967.10/x
  3. Step 3: Cross multiply
    1,890.89x = 2,838.08 × 967.10
  4. Step 4: Simplify right side
    1,890.89x = 2,744,716.68
  5. Step 5: Solve for x
    x = 2,744,716.68/1,890.89
  6. Step 6: Final answer
    x = 1,451.55

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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.