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Finding the Fourth Proportional to 1,733.67, 2,601.54 and 638.81

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Solution

The fourth proportional to 1,733.67, 2,601.54 and 638.81 is: 958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,733.67 : 2,601.54 = 638.81 : x
  2. Step 2: Convert to fraction form
    1,733.67/2,601.54 = 638.81/x
  3. Step 3: Cross multiply
    1,733.67x = 2,601.54 × 638.81
  4. Step 4: Simplify right side
    1,733.67x = 1,661,889.77
  5. Step 5: Solve for x
    x = 1,661,889.77/1,733.67
  6. Step 6: Final answer
    x = 958.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.