Home / 3,131.02-4,696.39-1,281.52

Finding the Fourth Proportional to 3,131.02, 4,696.39 and 1,281.52

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Solution

The fourth proportional to 3,131.02, 4,696.39 and 1,281.52 is: 1,922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.02 : 4,696.39 = 1,281.52 : x
  2. Step 2: Convert to fraction form
    3,131.02/4,696.39 = 1,281.52/x
  3. Step 3: Cross multiply
    3,131.02x = 4,696.39 × 1,281.52
  4. Step 4: Simplify right side
    3,131.02x = 6,018,517.71
  5. Step 5: Solve for x
    x = 6,018,517.71/3,131.02
  6. Step 6: Final answer
    x = 1,922.22

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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.