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Finding the Fourth Proportional to 1,597.81, 2,204.95 and 889.63

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Solution

The fourth proportional to 1,597.81, 2,204.95 and 889.63 is: 1,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,597.81 : 2,204.95 = 889.63 : x
  2. Step 2: Convert to fraction form
    1,597.81/2,204.95 = 889.63/x
  3. Step 3: Cross multiply
    1,597.81x = 2,204.95 × 889.63
  4. Step 4: Simplify right side
    1,597.81x = 1,961,585.22
  5. Step 5: Solve for x
    x = 1,961,585.22/1,597.81
  6. Step 6: Final answer
    x = 1,227.67

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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.