Home / 3,117.77-4,302.99-1,939.22

Finding the Fourth Proportional to 3,117.77, 4,302.99 and 1,939.22

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Solution

The fourth proportional to 3,117.77, 4,302.99 and 1,939.22 is: 2,676.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.77 : 4,302.99 = 1,939.22 : x
  2. Step 2: Convert to fraction form
    3,117.77/4,302.99 = 1,939.22/x
  3. Step 3: Cross multiply
    3,117.77x = 4,302.99 × 1,939.22
  4. Step 4: Simplify right side
    3,117.77x = 8,344,444.27
  5. Step 5: Solve for x
    x = 8,344,444.27/3,117.77
  6. Step 6: Final answer
    x = 2,676.41

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Similar ratio
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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.