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Finding the Fourth Proportional to 1,630.81, 2,250.53 and 884.77

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Solution

The fourth proportional to 1,630.81, 2,250.53 and 884.77 is: 1,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.81 : 2,250.53 = 884.77 : x
  2. Step 2: Convert to fraction form
    1,630.81/2,250.53 = 884.77/x
  3. Step 3: Cross multiply
    1,630.81x = 2,250.53 × 884.77
  4. Step 4: Simplify right side
    1,630.81x = 1,991,201.43
  5. Step 5: Solve for x
    x = 1,991,201.43/1,630.81
  6. Step 6: Final answer
    x = 1,220.99

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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.