Home / 4,987.55-6,882.84-2,999.25

Finding the Fourth Proportional to 4,987.55, 6,882.84 and 2,999.25

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Solution

The fourth proportional to 4,987.55, 6,882.84 and 2,999.25 is: 4,138.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.55 : 6,882.84 = 2,999.25 : x
  2. Step 2: Convert to fraction form
    4,987.55/6,882.84 = 2,999.25/x
  3. Step 3: Cross multiply
    4,987.55x = 6,882.84 × 2,999.25
  4. Step 4: Simplify right side
    4,987.55x = 20,643,357.87
  5. Step 5: Solve for x
    x = 20,643,357.87/4,987.55
  6. Step 6: Final answer
    x = 4,138.98

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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.