Home / 5,081.36-7,620.02-1,959.64

Finding the Fourth Proportional to 5,081.36, 7,620.02 and 1,959.64

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Solution

The fourth proportional to 5,081.36, 7,620.02 and 1,959.64 is: 2,938.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.36 : 7,620.02 = 1,959.64 : x
  2. Step 2: Convert to fraction form
    5,081.36/7,620.02 = 1,959.64/x
  3. Step 3: Cross multiply
    5,081.36x = 7,620.02 × 1,959.64
  4. Step 4: Simplify right side
    5,081.36x = 14,932,495.99
  5. Step 5: Solve for x
    x = 14,932,495.99/5,081.36
  6. Step 6: Final answer
    x = 2,938.68

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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.