Home / 1,984.04-2,738.46-1,355.90

Finding the Fourth Proportional to 1,984.04, 2,738.46 and 1,355.90

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Solution

The fourth proportional to 1,984.04, 2,738.46 and 1,355.90 is: 1,871.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.04 : 2,738.46 = 1,355.90 : x
  2. Step 2: Convert to fraction form
    1,984.04/2,738.46 = 1,355.90/x
  3. Step 3: Cross multiply
    1,984.04x = 2,738.46 × 1,355.90
  4. Step 4: Simplify right side
    1,984.04x = 3,713,077.91
  5. Step 5: Solve for x
    x = 3,713,077.91/1,984.04
  6. Step 6: Final answer
    x = 1,871.47

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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.