Home / 3,072.86-4,240.11-1,746.28

Finding the Fourth Proportional to 3,072.86, 4,240.11 and 1,746.28

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Solution

The fourth proportional to 3,072.86, 4,240.11 and 1,746.28 is: 2,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.86 : 4,240.11 = 1,746.28 : x
  2. Step 2: Convert to fraction form
    3,072.86/4,240.11 = 1,746.28/x
  3. Step 3: Cross multiply
    3,072.86x = 4,240.11 × 1,746.28
  4. Step 4: Simplify right side
    3,072.86x = 7,404,419.29
  5. Step 5: Solve for x
    x = 7,404,419.29/3,072.86
  6. Step 6: Final answer
    x = 2,409.62

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1.5x scale

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.