Home / 3,307.51-4,960.79-1,115.95

Finding the Fourth Proportional to 3,307.51, 4,960.79 and 1,115.95

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Solution

The fourth proportional to 3,307.51, 4,960.79 and 1,115.95 is: 1,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.51 : 4,960.79 = 1,115.95 : x
  2. Step 2: Convert to fraction form
    3,307.51/4,960.79 = 1,115.95/x
  3. Step 3: Cross multiply
    3,307.51x = 4,960.79 × 1,115.95
  4. Step 4: Simplify right side
    3,307.51x = 5,535,968.80
  5. Step 5: Solve for x
    x = 5,535,968.80/3,307.51
  6. Step 6: Final answer
    x = 1,673.76

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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.