Home / 3,455.18-4,768.13-1,962.80

Finding the Fourth Proportional to 3,455.18, 4,768.13 and 1,962.80

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Solution

The fourth proportional to 3,455.18, 4,768.13 and 1,962.80 is: 2,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.18 : 4,768.13 = 1,962.80 : x
  2. Step 2: Convert to fraction form
    3,455.18/4,768.13 = 1,962.80/x
  3. Step 3: Cross multiply
    3,455.18x = 4,768.13 × 1,962.80
  4. Step 4: Simplify right side
    3,455.18x = 9,358,885.56
  5. Step 5: Solve for x
    x = 9,358,885.56/3,455.18
  6. Step 6: Final answer
    x = 2,708.65

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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.