Home / 2,121.66-2,926.53-1,334.34

Finding the Fourth Proportional to 2,121.66, 2,926.53 and 1,334.34

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Solution

The fourth proportional to 2,121.66, 2,926.53 and 1,334.34 is: 1,840.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.66 : 2,926.53 = 1,334.34 : x
  2. Step 2: Convert to fraction form
    2,121.66/2,926.53 = 1,334.34/x
  3. Step 3: Cross multiply
    2,121.66x = 2,926.53 × 1,334.34
  4. Step 4: Simplify right side
    2,121.66x = 3,904,986.04
  5. Step 5: Solve for x
    x = 3,904,986.04/2,121.66
  6. Step 6: Final answer
    x = 1,840.53

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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.