Home / 5,252.85-7,879.68-1,555.02

Finding the Fourth Proportional to 5,252.85, 7,879.68 and 1,555.02

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Solution

The fourth proportional to 5,252.85, 7,879.68 and 1,555.02 is: 2,332.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.85 : 7,879.68 = 1,555.02 : x
  2. Step 2: Convert to fraction form
    5,252.85/7,879.68 = 1,555.02/x
  3. Step 3: Cross multiply
    5,252.85x = 7,879.68 × 1,555.02
  4. Step 4: Simplify right side
    5,252.85x = 12,253,059.99
  5. Step 5: Solve for x
    x = 12,253,059.99/5,252.85
  6. Step 6: Final answer
    x = 2,332.65

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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.