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Finding the Fourth Proportional to 1,450.98, 2,000.70 and 1,101.06

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Solution

The fourth proportional to 1,450.98, 2,000.70 and 1,101.06 is: 1,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.98 : 2,000.70 = 1,101.06 : x
  2. Step 2: Convert to fraction form
    1,450.98/2,000.70 = 1,101.06/x
  3. Step 3: Cross multiply
    1,450.98x = 2,000.70 × 1,101.06
  4. Step 4: Simplify right side
    1,450.98x = 2,202,890.74
  5. Step 5: Solve for x
    x = 2,202,890.74/1,450.98
  6. Step 6: Final answer
    x = 1,518.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.