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Finding the Fourth Proportional to 1,449.37, 2,000.05 and 889.89

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Solution

The fourth proportional to 1,449.37, 2,000.05 and 889.89 is: 1,228.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.37 : 2,000.05 = 889.89 : x
  2. Step 2: Convert to fraction form
    1,449.37/2,000.05 = 889.89/x
  3. Step 3: Cross multiply
    1,449.37x = 2,000.05 × 889.89
  4. Step 4: Simplify right side
    1,449.37x = 1,779,824.49
  5. Step 5: Solve for x
    x = 1,779,824.49/1,449.37
  6. Step 6: Final answer
    x = 1,228.00

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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.