Home / 1,450.08-1,999.38-1,372.20

Finding the Fourth Proportional to 1,450.08, 1,999.38 and 1,372.20

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Solution

The fourth proportional to 1,450.08, 1,999.38 and 1,372.20 is: 1,892.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.08 : 1,999.38 = 1,372.20 : x
  2. Step 2: Convert to fraction form
    1,450.08/1,999.38 = 1,372.20/x
  3. Step 3: Cross multiply
    1,450.08x = 1,999.38 × 1,372.20
  4. Step 4: Simplify right side
    1,450.08x = 2,743,549.24
  5. Step 5: Solve for x
    x = 2,743,549.24/1,450.08
  6. Step 6: Final answer
    x = 1,892.00

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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.