Home / 2,315.98-3,197.55-2,066.88

Finding the Fourth Proportional to 2,315.98, 3,197.55 and 2,066.88

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Solution

The fourth proportional to 2,315.98, 3,197.55 and 2,066.88 is: 2,853.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.98 : 3,197.55 = 2,066.88 : x
  2. Step 2: Convert to fraction form
    2,315.98/3,197.55 = 2,066.88/x
  3. Step 3: Cross multiply
    2,315.98x = 3,197.55 × 2,066.88
  4. Step 4: Simplify right side
    2,315.98x = 6,608,952.14
  5. Step 5: Solve for x
    x = 6,608,952.14/2,315.98
  6. Step 6: Final answer
    x = 2,853.63

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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.