Home / 3,455.79-5,182.98-1,263.78

Finding the Fourth Proportional to 3,455.79, 5,182.98 and 1,263.78

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Solution

The fourth proportional to 3,455.79, 5,182.98 and 1,263.78 is: 1,895.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.79 : 5,182.98 = 1,263.78 : x
  2. Step 2: Convert to fraction form
    3,455.79/5,182.98 = 1,263.78/x
  3. Step 3: Cross multiply
    3,455.79x = 5,182.98 × 1,263.78
  4. Step 4: Simplify right side
    3,455.79x = 6,550,146.46
  5. Step 5: Solve for x
    x = 6,550,146.46/3,455.79
  6. Step 6: Final answer
    x = 1,895.41

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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.