Home / 4,986.90-7,467.98-2,900.58

Finding the Fourth Proportional to 4,986.90, 7,467.98 and 2,900.58

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Solution

The fourth proportional to 4,986.90, 7,467.98 and 2,900.58 is: 4,343.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.90 : 7,467.98 = 2,900.58 : x
  2. Step 2: Convert to fraction form
    4,986.90/7,467.98 = 2,900.58/x
  3. Step 3: Cross multiply
    4,986.90x = 7,467.98 × 2,900.58
  4. Step 4: Simplify right side
    4,986.90x = 21,661,473.43
  5. Step 5: Solve for x
    x = 21,661,473.43/4,986.90
  6. Step 6: Final answer
    x = 4,343.68

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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.