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Finding the Fourth Proportional to 5,339.62, 8,008.53 and 1,640.84

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Solution

The fourth proportional to 5,339.62, 8,008.53 and 1,640.84 is: 2,460.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.62 : 8,008.53 = 1,640.84 : x
  2. Step 2: Convert to fraction form
    5,339.62/8,008.53 = 1,640.84/x
  3. Step 3: Cross multiply
    5,339.62x = 8,008.53 × 1,640.84
  4. Step 4: Simplify right side
    5,339.62x = 13,140,716.37
  5. Step 5: Solve for x
    x = 13,140,716.37/5,339.62
  6. Step 6: Final answer
    x = 2,460.98

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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.