Home / 4,139.69-6,219.51-2,661.76

Finding the Fourth Proportional to 4,139.69, 6,219.51 and 2,661.76

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Solution

The fourth proportional to 4,139.69, 6,219.51 and 2,661.76 is: 3,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.69 : 6,219.51 = 2,661.76 : x
  2. Step 2: Convert to fraction form
    4,139.69/6,219.51 = 2,661.76/x
  3. Step 3: Cross multiply
    4,139.69x = 6,219.51 × 2,661.76
  4. Step 4: Simplify right side
    4,139.69x = 16,554,848.22
  5. Step 5: Solve for x
    x = 16,554,848.22/4,139.69
  6. Step 6: Final answer
    x = 3,999.05

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1.5x scale

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.