Home / 1,415.75-2,125.44-1,200.69

Finding the Fourth Proportional to 1,415.75, 2,125.44 and 1,200.69

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Solution

The fourth proportional to 1,415.75, 2,125.44 and 1,200.69 is: 1,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.75 : 2,125.44 = 1,200.69 : x
  2. Step 2: Convert to fraction form
    1,415.75/2,125.44 = 1,200.69/x
  3. Step 3: Cross multiply
    1,415.75x = 2,125.44 × 1,200.69
  4. Step 4: Simplify right side
    1,415.75x = 2,551,994.55
  5. Step 5: Solve for x
    x = 2,551,994.55/1,415.75
  6. Step 6: Final answer
    x = 1,802.58

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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.