Home / 2,196.12-3,025.44-1,531.80

Finding the Fourth Proportional to 2,196.12, 3,025.44 and 1,531.80

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Solution

The fourth proportional to 2,196.12, 3,025.44 and 1,531.80 is: 2,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196.12 : 3,025.44 = 1,531.80 : x
  2. Step 2: Convert to fraction form
    2,196.12/3,025.44 = 1,531.80/x
  3. Step 3: Cross multiply
    2,196.12x = 3,025.44 × 1,531.80
  4. Step 4: Simplify right side
    2,196.12x = 4,634,368.99
  5. Step 5: Solve for x
    x = 4,634,368.99/2,196.12
  6. Step 6: Final answer
    x = 2,110.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.