Home / 4,985.29-7,470.88-2,765.11

Finding the Fourth Proportional to 4,985.29, 7,470.88 and 2,765.11

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Solution

The fourth proportional to 4,985.29, 7,470.88 and 2,765.11 is: 4,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.29 : 7,470.88 = 2,765.11 : x
  2. Step 2: Convert to fraction form
    4,985.29/7,470.88 = 2,765.11/x
  3. Step 3: Cross multiply
    4,985.29x = 7,470.88 × 2,765.11
  4. Step 4: Simplify right side
    4,985.29x = 20,657,805.00
  5. Step 5: Solve for x
    x = 20,657,805.00/4,985.29
  6. Step 6: Final answer
    x = 4,143.75

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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.