Home / 3,021.08-4,531.64-830.04

Finding the Fourth Proportional to 3,021.08, 4,531.64 and 830.04

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Solution

The fourth proportional to 3,021.08, 4,531.64 and 830.04 is: 1,245.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.08 : 4,531.64 = 830.04 : x
  2. Step 2: Convert to fraction form
    3,021.08/4,531.64 = 830.04/x
  3. Step 3: Cross multiply
    3,021.08x = 4,531.64 × 830.04
  4. Step 4: Simplify right side
    3,021.08x = 3,761,442.47
  5. Step 5: Solve for x
    x = 3,761,442.47/3,021.08
  6. Step 6: Final answer
    x = 1,245.07

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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.