Home / 1,984.17-2,738.84-1,228.53

Finding the Fourth Proportional to 1,984.17, 2,738.84 and 1,228.53

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Solution

The fourth proportional to 1,984.17, 2,738.84 and 1,228.53 is: 1,695.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.17 : 2,738.84 = 1,228.53 : x
  2. Step 2: Convert to fraction form
    1,984.17/2,738.84 = 1,228.53/x
  3. Step 3: Cross multiply
    1,984.17x = 2,738.84 × 1,228.53
  4. Step 4: Simplify right side
    1,984.17x = 3,364,750.18
  5. Step 5: Solve for x
    x = 3,364,750.18/1,984.17
  6. Step 6: Final answer
    x = 1,695.80

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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.