Home / 1,492.12-2,057.41-1,211.49

Finding the Fourth Proportional to 1,492.12, 2,057.41 and 1,211.49

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Solution

The fourth proportional to 1,492.12, 2,057.41 and 1,211.49 is: 1,670.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492.12 : 2,057.41 = 1,211.49 : x
  2. Step 2: Convert to fraction form
    1,492.12/2,057.41 = 1,211.49/x
  3. Step 3: Cross multiply
    1,492.12x = 2,057.41 × 1,211.49
  4. Step 4: Simplify right side
    1,492.12x = 2,492,531.64
  5. Step 5: Solve for x
    x = 2,492,531.64/1,492.12
  6. Step 6: Final answer
    x = 1,670.46

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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.