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Finding the Fourth Proportional to 1,999.50, 3,000.33 and 973.50

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Solution

The fourth proportional to 1,999.50, 3,000.33 and 973.50 is: 1,460.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.50 : 3,000.33 = 973.50 : x
  2. Step 2: Convert to fraction form
    1,999.50/3,000.33 = 973.50/x
  3. Step 3: Cross multiply
    1,999.50x = 3,000.33 × 973.50
  4. Step 4: Simplify right side
    1,999.50x = 2,920,821.26
  5. Step 5: Solve for x
    x = 2,920,821.26/1,999.50
  6. Step 6: Final answer
    x = 1,460.78

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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.