Home / 2,625.93-3,938.85-1,238.51

Finding the Fourth Proportional to 2,625.93, 3,938.85 and 1,238.51

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Solution

The fourth proportional to 2,625.93, 3,938.85 and 1,238.51 is: 1,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.93 : 3,938.85 = 1,238.51 : x
  2. Step 2: Convert to fraction form
    2,625.93/3,938.85 = 1,238.51/x
  3. Step 3: Cross multiply
    2,625.93x = 3,938.85 × 1,238.51
  4. Step 4: Simplify right side
    2,625.93x = 4,878,285.42
  5. Step 5: Solve for x
    x = 4,878,285.42/2,625.93
  6. Step 6: Final answer
    x = 1,857.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.