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Finding the Fourth Proportional to 3,093.12, 4,640.40 and 901.80

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Solution

The fourth proportional to 3,093.12, 4,640.40 and 901.80 is: 1,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,093.12 : 4,640.40 = 901.80 : x
  2. Step 2: Convert to fraction form
    3,093.12/4,640.40 = 901.80/x
  3. Step 3: Cross multiply
    3,093.12x = 4,640.40 × 901.80
  4. Step 4: Simplify right side
    3,093.12x = 4,184,712.72
  5. Step 5: Solve for x
    x = 4,184,712.72/3,093.12
  6. Step 6: Final answer
    x = 1,352.91

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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.