Home / 1,914.94-2,643.60-1,129.24

Finding the Fourth Proportional to 1,914.94, 2,643.60 and 1,129.24

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Solution

The fourth proportional to 1,914.94, 2,643.60 and 1,129.24 is: 1,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.94 : 2,643.60 = 1,129.24 : x
  2. Step 2: Convert to fraction form
    1,914.94/2,643.60 = 1,129.24/x
  3. Step 3: Cross multiply
    1,914.94x = 2,643.60 × 1,129.24
  4. Step 4: Simplify right side
    1,914.94x = 2,985,258.86
  5. Step 5: Solve for x
    x = 2,985,258.86/1,914.94
  6. Step 6: Final answer
    x = 1,558.93

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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.