Home / 3,230.40-4,455.36-2,051.76

Finding the Fourth Proportional to 3,230.40, 4,455.36 and 2,051.76

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Solution

The fourth proportional to 3,230.40, 4,455.36 and 2,051.76 is: 2,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.40 : 4,455.36 = 2,051.76 : x
  2. Step 2: Convert to fraction form
    3,230.40/4,455.36 = 2,051.76/x
  3. Step 3: Cross multiply
    3,230.40x = 4,455.36 × 2,051.76
  4. Step 4: Simplify right side
    3,230.40x = 9,141,329.43
  5. Step 5: Solve for x
    x = 9,141,329.43/3,230.40
  6. Step 6: Final answer
    x = 2,829.78

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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.