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Finding the Fourth Proportional to 2,969.32, 4,453.56 and 889.66

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Solution

The fourth proportional to 2,969.32, 4,453.56 and 889.66 is: 1,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.32 : 4,453.56 = 889.66 : x
  2. Step 2: Convert to fraction form
    2,969.32/4,453.56 = 889.66/x
  3. Step 3: Cross multiply
    2,969.32x = 4,453.56 × 889.66
  4. Step 4: Simplify right side
    2,969.32x = 3,962,154.19
  5. Step 5: Solve for x
    x = 3,962,154.19/2,969.32
  6. Step 6: Final answer
    x = 1,334.36

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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.