Home / 6,434.45-9,643.97-3,315.95

Finding the Fourth Proportional to 6,434.45, 9,643.97 and 3,315.95

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Solution

The fourth proportional to 6,434.45, 9,643.97 and 3,315.95 is: 4,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434.45 : 9,643.97 = 3,315.95 : x
  2. Step 2: Convert to fraction form
    6,434.45/9,643.97 = 3,315.95/x
  3. Step 3: Cross multiply
    6,434.45x = 9,643.97 × 3,315.95
  4. Step 4: Simplify right side
    6,434.45x = 31,978,857.52
  5. Step 5: Solve for x
    x = 31,978,857.52/6,434.45
  6. Step 6: Final answer
    x = 4,969.95

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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.