Home / 4,910.63-6,767.15-3,139.16

Finding the Fourth Proportional to 4,910.63, 6,767.15 and 3,139.16

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Solution

The fourth proportional to 4,910.63, 6,767.15 and 3,139.16 is: 4,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.63 : 6,767.15 = 3,139.16 : x
  2. Step 2: Convert to fraction form
    4,910.63/6,767.15 = 3,139.16/x
  3. Step 3: Cross multiply
    4,910.63x = 6,767.15 × 3,139.16
  4. Step 4: Simplify right side
    4,910.63x = 21,243,117.06
  5. Step 5: Solve for x
    x = 21,243,117.06/4,910.63
  6. Step 6: Final answer
    x = 4,325.95

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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.