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Finding the Fourth Proportional to 1,889.46, 2,607.46 and 1,050.20

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Solution

The fourth proportional to 1,889.46, 2,607.46 and 1,050.20 is: 1,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.46 : 2,607.46 = 1,050.20 : x
  2. Step 2: Convert to fraction form
    1,889.46/2,607.46 = 1,050.20/x
  3. Step 3: Cross multiply
    1,889.46x = 2,607.46 × 1,050.20
  4. Step 4: Simplify right side
    1,889.46x = 2,738,354.49
  5. Step 5: Solve for x
    x = 2,738,354.49/1,889.46
  6. Step 6: Final answer
    x = 1,449.28

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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.