Home / 2,415.84-3,336.99-1,997.88

Finding the Fourth Proportional to 2,415.84, 3,336.99 and 1,997.88

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Solution

The fourth proportional to 2,415.84, 3,336.99 and 1,997.88 is: 2,759.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.84 : 3,336.99 = 1,997.88 : x
  2. Step 2: Convert to fraction form
    2,415.84/3,336.99 = 1,997.88/x
  3. Step 3: Cross multiply
    2,415.84x = 3,336.99 × 1,997.88
  4. Step 4: Simplify right side
    2,415.84x = 6,666,885.58
  5. Step 5: Solve for x
    x = 6,666,885.58/2,415.84
  6. Step 6: Final answer
    x = 2,759.66

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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.