Home / 1,925.79-2,657.69-1,179.51

Finding the Fourth Proportional to 1,925.79, 2,657.69 and 1,179.51

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Solution

The fourth proportional to 1,925.79, 2,657.69 and 1,179.51 is: 1,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.79 : 2,657.69 = 1,179.51 : x
  2. Step 2: Convert to fraction form
    1,925.79/2,657.69 = 1,179.51/x
  3. Step 3: Cross multiply
    1,925.79x = 2,657.69 × 1,179.51
  4. Step 4: Simplify right side
    1,925.79x = 3,134,766.03
  5. Step 5: Solve for x
    x = 3,134,766.03/1,925.79
  6. Step 6: Final answer
    x = 1,627.78

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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.