Home / 4,305.84-5,938.56-2,889.78

Finding the Fourth Proportional to 4,305.84, 5,938.56 and 2,889.78

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Solution

The fourth proportional to 4,305.84, 5,938.56 and 2,889.78 is: 3,985.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.84 : 5,938.56 = 2,889.78 : x
  2. Step 2: Convert to fraction form
    4,305.84/5,938.56 = 2,889.78/x
  3. Step 3: Cross multiply
    4,305.84x = 5,938.56 × 2,889.78
  4. Step 4: Simplify right side
    4,305.84x = 17,161,131.92
  5. Step 5: Solve for x
    x = 17,161,131.92/4,305.84
  6. Step 6: Final answer
    x = 3,985.55

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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.