Home / 5,326.95-7,981.69-3,240.66

Finding the Fourth Proportional to 5,326.95, 7,981.69 and 3,240.66

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Solution

The fourth proportional to 5,326.95, 7,981.69 and 3,240.66 is: 4,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.95 : 7,981.69 = 3,240.66 : x
  2. Step 2: Convert to fraction form
    5,326.95/7,981.69 = 3,240.66/x
  3. Step 3: Cross multiply
    5,326.95x = 7,981.69 × 3,240.66
  4. Step 4: Simplify right side
    5,326.95x = 25,865,943.52
  5. Step 5: Solve for x
    x = 25,865,943.52/5,326.95
  6. Step 6: Final answer
    x = 4,855.68

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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.