Home / 3,088.78-4,263.36-1,969.76

Finding the Fourth Proportional to 3,088.78, 4,263.36 and 1,969.76

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Solution

The fourth proportional to 3,088.78, 4,263.36 and 1,969.76 is: 2,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.78 : 4,263.36 = 1,969.76 : x
  2. Step 2: Convert to fraction form
    3,088.78/4,263.36 = 1,969.76/x
  3. Step 3: Cross multiply
    3,088.78x = 4,263.36 × 1,969.76
  4. Step 4: Simplify right side
    3,088.78x = 8,397,795.99
  5. Step 5: Solve for x
    x = 8,397,795.99/3,088.78
  6. Step 6: Final answer
    x = 2,718.81

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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.