Home / 2,740.24-4,101.16-1,986.58

Finding the Fourth Proportional to 2,740.24, 4,101.16 and 1,986.58

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Solution

The fourth proportional to 2,740.24, 4,101.16 and 1,986.58 is: 2,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.24 : 4,101.16 = 1,986.58 : x
  2. Step 2: Convert to fraction form
    2,740.24/4,101.16 = 1,986.58/x
  3. Step 3: Cross multiply
    2,740.24x = 4,101.16 × 1,986.58
  4. Step 4: Simplify right side
    2,740.24x = 8,147,282.43
  5. Step 5: Solve for x
    x = 8,147,282.43/2,740.24
  6. Step 6: Final answer
    x = 2,973.20

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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.