Home / 5,187.94-7,159.29-2,830.03

Finding the Fourth Proportional to 5,187.94, 7,159.29 and 2,830.03

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Solution

The fourth proportional to 5,187.94, 7,159.29 and 2,830.03 is: 3,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.94 : 7,159.29 = 2,830.03 : x
  2. Step 2: Convert to fraction form
    5,187.94/7,159.29 = 2,830.03/x
  3. Step 3: Cross multiply
    5,187.94x = 7,159.29 × 2,830.03
  4. Step 4: Simplify right side
    5,187.94x = 20,261,005.48
  5. Step 5: Solve for x
    x = 20,261,005.48/5,187.94
  6. Step 6: Final answer
    x = 3,905.40

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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.