Home / 1,917.19-2,645.74-1,077.93

Finding the Fourth Proportional to 1,917.19, 2,645.74 and 1,077.93

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Solution

The fourth proportional to 1,917.19, 2,645.74 and 1,077.93 is: 1,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.19 : 2,645.74 = 1,077.93 : x
  2. Step 2: Convert to fraction form
    1,917.19/2,645.74 = 1,077.93/x
  3. Step 3: Cross multiply
    1,917.19x = 2,645.74 × 1,077.93
  4. Step 4: Simplify right side
    1,917.19x = 2,851,928.28
  5. Step 5: Solve for x
    x = 2,851,928.28/1,917.19
  6. Step 6: Final answer
    x = 1,487.55

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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.