Home / 3,312.30-4,968.45-2,777.70

Finding the Fourth Proportional to 3,312.30, 4,968.45 and 2,777.70

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Solution

The fourth proportional to 3,312.30, 4,968.45 and 2,777.70 is: 4,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.30 : 4,968.45 = 2,777.70 : x
  2. Step 2: Convert to fraction form
    3,312.30/4,968.45 = 2,777.70/x
  3. Step 3: Cross multiply
    3,312.30x = 4,968.45 × 2,777.70
  4. Step 4: Simplify right side
    3,312.30x = 13,800,863.57
  5. Step 5: Solve for x
    x = 13,800,863.57/3,312.30
  6. Step 6: Final answer
    x = 4,166.55

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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.