Home / 3,143.78-4,338.51-1,746.50

Finding the Fourth Proportional to 3,143.78, 4,338.51 and 1,746.50

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Solution

The fourth proportional to 3,143.78, 4,338.51 and 1,746.50 is: 2,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.78 : 4,338.51 = 1,746.50 : x
  2. Step 2: Convert to fraction form
    3,143.78/4,338.51 = 1,746.50/x
  3. Step 3: Cross multiply
    3,143.78x = 4,338.51 × 1,746.50
  4. Step 4: Simplify right side
    3,143.78x = 7,577,207.72
  5. Step 5: Solve for x
    x = 7,577,207.72/3,143.78
  6. Step 6: Final answer
    x = 2,410.22

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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.