Home / 3,300.60-4,950.36-1,221.57

Finding the Fourth Proportional to 3,300.60, 4,950.36 and 1,221.57

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Solution

The fourth proportional to 3,300.60, 4,950.36 and 1,221.57 is: 1,832.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,300.60 : 4,950.36 = 1,221.57 : x
  2. Step 2: Convert to fraction form
    3,300.60/4,950.36 = 1,221.57/x
  3. Step 3: Cross multiply
    3,300.60x = 4,950.36 × 1,221.57
  4. Step 4: Simplify right side
    3,300.60x = 6,047,211.27
  5. Step 5: Solve for x
    x = 6,047,211.27/3,300.60
  6. Step 6: Final answer
    x = 1,832.16

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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.