Home / 3,021.18-4,531.80-829.98

Finding the Fourth Proportional to 3,021.18, 4,531.80 and 829.98

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Solution

The fourth proportional to 3,021.18, 4,531.80 and 829.98 is: 1,244.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.18 : 4,531.80 = 829.98 : x
  2. Step 2: Convert to fraction form
    3,021.18/4,531.80 = 829.98/x
  3. Step 3: Cross multiply
    3,021.18x = 4,531.80 × 829.98
  4. Step 4: Simplify right side
    3,021.18x = 3,761,303.36
  5. Step 5: Solve for x
    x = 3,761,303.36/3,021.18
  6. Step 6: Final answer
    x = 1,244.98

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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.