Home / 3,131.02-4,320.30-1,733.50

Finding the Fourth Proportional to 3,131.02, 4,320.30 and 1,733.50

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Solution

The fourth proportional to 3,131.02, 4,320.30 and 1,733.50 is: 2,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.02 : 4,320.30 = 1,733.50 : x
  2. Step 2: Convert to fraction form
    3,131.02/4,320.30 = 1,733.50/x
  3. Step 3: Cross multiply
    3,131.02x = 4,320.30 × 1,733.50
  4. Step 4: Simplify right side
    3,131.02x = 7,489,240.05
  5. Step 5: Solve for x
    x = 7,489,240.05/3,131.02
  6. Step 6: Final answer
    x = 2,391.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.