Home / 3,253.67-4,878.43-1,378.58

Finding the Fourth Proportional to 3,253.67, 4,878.43 and 1,378.58

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Solution

The fourth proportional to 3,253.67, 4,878.43 and 1,378.58 is: 2,066.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.67 : 4,878.43 = 1,378.58 : x
  2. Step 2: Convert to fraction form
    3,253.67/4,878.43 = 1,378.58/x
  3. Step 3: Cross multiply
    3,253.67x = 4,878.43 × 1,378.58
  4. Step 4: Simplify right side
    3,253.67x = 6,725,306.03
  5. Step 5: Solve for x
    x = 6,725,306.03/3,253.67
  6. Step 6: Final answer
    x = 2,066.99

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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.