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Finding the Fourth Proportional to 3,555.21, 5,333.09 and 958.11

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Solution

The fourth proportional to 3,555.21, 5,333.09 and 958.11 is: 1,437.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.21 : 5,333.09 = 958.11 : x
  2. Step 2: Convert to fraction form
    3,555.21/5,333.09 = 958.11/x
  3. Step 3: Cross multiply
    3,555.21x = 5,333.09 × 958.11
  4. Step 4: Simplify right side
    3,555.21x = 5,109,682.07
  5. Step 5: Solve for x
    x = 5,109,682.07/3,555.21
  6. Step 6: Final answer
    x = 1,437.24

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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.