Home / 1,211.41-1,814.23-1,018.45

Finding the Fourth Proportional to 1,211.41, 1,814.23 and 1,018.45

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Solution

The fourth proportional to 1,211.41, 1,814.23 and 1,018.45 is: 1,525.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.41 : 1,814.23 = 1,018.45 : x
  2. Step 2: Convert to fraction form
    1,211.41/1,814.23 = 1,018.45/x
  3. Step 3: Cross multiply
    1,211.41x = 1,814.23 × 1,018.45
  4. Step 4: Simplify right side
    1,211.41x = 1,847,702.54
  5. Step 5: Solve for x
    x = 1,847,702.54/1,211.41
  6. Step 6: Final answer
    x = 1,525.25

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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.