Home / 1,838.35-2,759.21-1,579.15

Finding the Fourth Proportional to 1,838.35, 2,759.21 and 1,579.15

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Solution

The fourth proportional to 1,838.35, 2,759.21 and 1,579.15 is: 2,370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.35 : 2,759.21 = 1,579.15 : x
  2. Step 2: Convert to fraction form
    1,838.35/2,759.21 = 1,579.15/x
  3. Step 3: Cross multiply
    1,838.35x = 2,759.21 × 1,579.15
  4. Step 4: Simplify right side
    1,838.35x = 4,357,206.47
  5. Step 5: Solve for x
    x = 4,357,206.47/1,838.35
  6. Step 6: Final answer
    x = 2,370.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.