Home / 2,845.84-3,926.98-1,666.68

Finding the Fourth Proportional to 2,845.84, 3,926.98 and 1,666.68

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Solution

The fourth proportional to 2,845.84, 3,926.98 and 1,666.68 is: 2,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.84 : 3,926.98 = 1,666.68 : x
  2. Step 2: Convert to fraction form
    2,845.84/3,926.98 = 1,666.68/x
  3. Step 3: Cross multiply
    2,845.84x = 3,926.98 × 1,666.68
  4. Step 4: Simplify right side
    2,845.84x = 6,545,019.03
  5. Step 5: Solve for x
    x = 6,545,019.03/2,845.84
  6. Step 6: Final answer
    x = 2,299.85

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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.