Home / 2,778.84-4,166.64-1,047.60

Finding the Fourth Proportional to 2,778.84, 4,166.64 and 1,047.60

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Solution

The fourth proportional to 2,778.84, 4,166.64 and 1,047.60 is: 1,570.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.84 : 4,166.64 = 1,047.60 : x
  2. Step 2: Convert to fraction form
    2,778.84/4,166.64 = 1,047.60/x
  3. Step 3: Cross multiply
    2,778.84x = 4,166.64 × 1,047.60
  4. Step 4: Simplify right side
    2,778.84x = 4,364,972.06
  5. Step 5: Solve for x
    x = 4,364,972.06/2,778.84
  6. Step 6: Final answer
    x = 1,570.79

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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.