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Finding the Fourth Proportional to 1,164.08, 1,745.75 and 383.91

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Solution

The fourth proportional to 1,164.08, 1,745.75 and 383.91 is: 575.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.08 : 1,745.75 = 383.91 : x
  2. Step 2: Convert to fraction form
    1,164.08/1,745.75 = 383.91/x
  3. Step 3: Cross multiply
    1,164.08x = 1,745.75 × 383.91
  4. Step 4: Simplify right side
    1,164.08x = 670,210.88
  5. Step 5: Solve for x
    x = 670,210.88/1,164.08
  6. Step 6: Final answer
    x = 575.74

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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.