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Finding the Fourth Proportional to 2,890.54, 4,342.94 and 1,850.99

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Solution

The fourth proportional to 2,890.54, 4,342.94 and 1,850.99 is: 2,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.54 : 4,342.94 = 1,850.99 : x
  2. Step 2: Convert to fraction form
    2,890.54/4,342.94 = 1,850.99/x
  3. Step 3: Cross multiply
    2,890.54x = 4,342.94 × 1,850.99
  4. Step 4: Simplify right side
    2,890.54x = 8,038,738.51
  5. Step 5: Solve for x
    x = 8,038,738.51/2,890.54
  6. Step 6: Final answer
    x = 2,781.05

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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.