Home / 4,860.76-7,289.88-2,087.88

Finding the Fourth Proportional to 4,860.76, 7,289.88 and 2,087.88

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Solution

The fourth proportional to 4,860.76, 7,289.88 and 2,087.88 is: 3,131.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,860.76 : 7,289.88 = 2,087.88 : x
  2. Step 2: Convert to fraction form
    4,860.76/7,289.88 = 2,087.88/x
  3. Step 3: Cross multiply
    4,860.76x = 7,289.88 × 2,087.88
  4. Step 4: Simplify right side
    4,860.76x = 15,220,394.65
  5. Step 5: Solve for x
    x = 15,220,394.65/4,860.76
  6. Step 6: Final answer
    x = 3,131.28

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1.5x scale

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.