Home / 1,917.10-2,645.36-1,077.62

Finding the Fourth Proportional to 1,917.10, 2,645.36 and 1,077.62

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Solution

The fourth proportional to 1,917.10, 2,645.36 and 1,077.62 is: 1,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.10 : 2,645.36 = 1,077.62 : x
  2. Step 2: Convert to fraction form
    1,917.10/2,645.36 = 1,077.62/x
  3. Step 3: Cross multiply
    1,917.10x = 2,645.36 × 1,077.62
  4. Step 4: Simplify right side
    1,917.10x = 2,850,692.84
  5. Step 5: Solve for x
    x = 2,850,692.84/1,917.10
  6. Step 6: Final answer
    x = 1,486.98

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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.