Home / 2,110.89-2,912.13-1,214.47

Finding the Fourth Proportional to 2,110.89, 2,912.13 and 1,214.47

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Solution

The fourth proportional to 2,110.89, 2,912.13 and 1,214.47 is: 1,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.89 : 2,912.13 = 1,214.47 : x
  2. Step 2: Convert to fraction form
    2,110.89/2,912.13 = 1,214.47/x
  3. Step 3: Cross multiply
    2,110.89x = 2,912.13 × 1,214.47
  4. Step 4: Simplify right side
    2,110.89x = 3,536,694.52
  5. Step 5: Solve for x
    x = 3,536,694.52/2,110.89
  6. Step 6: Final answer
    x = 1,675.45

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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.