Home / 2,918.82-4,027.28-1,925.71

Finding the Fourth Proportional to 2,918.82, 4,027.28 and 1,925.71

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Solution

The fourth proportional to 2,918.82, 4,027.28 and 1,925.71 is: 2,657.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.82 : 4,027.28 = 1,925.71 : x
  2. Step 2: Convert to fraction form
    2,918.82/4,027.28 = 1,925.71/x
  3. Step 3: Cross multiply
    2,918.82x = 4,027.28 × 1,925.71
  4. Step 4: Simplify right side
    2,918.82x = 7,755,373.37
  5. Step 5: Solve for x
    x = 7,755,373.37/2,918.82
  6. Step 6: Final answer
    x = 2,657.02

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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.