Home / 4,800.30-7,199.85-1,290.57

Finding the Fourth Proportional to 4,800.30, 7,199.85 and 1,290.57

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Solution

The fourth proportional to 4,800.30, 7,199.85 and 1,290.57 is: 1,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.30 : 7,199.85 = 1,290.57 : x
  2. Step 2: Convert to fraction form
    4,800.30/7,199.85 = 1,290.57/x
  3. Step 3: Cross multiply
    4,800.30x = 7,199.85 × 1,290.57
  4. Step 4: Simplify right side
    4,800.30x = 9,291,910.41
  5. Step 5: Solve for x
    x = 9,291,910.41/4,800.30
  6. Step 6: Final answer
    x = 1,935.69

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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.