Home / 3,943.18-5,440.86-2,371.30

Finding the Fourth Proportional to 3,943.18, 5,440.86 and 2,371.30

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Solution

The fourth proportional to 3,943.18, 5,440.86 and 2,371.30 is: 3,271.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.18 : 5,440.86 = 2,371.30 : x
  2. Step 2: Convert to fraction form
    3,943.18/5,440.86 = 2,371.30/x
  3. Step 3: Cross multiply
    3,943.18x = 5,440.86 × 2,371.30
  4. Step 4: Simplify right side
    3,943.18x = 12,901,911.32
  5. Step 5: Solve for x
    x = 12,901,911.32/3,943.18
  6. Step 6: Final answer
    x = 3,271.96

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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.