Home / 3,131.02-4,696.42-1,488.74

Finding the Fourth Proportional to 3,131.02, 4,696.42 and 1,488.74

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Solution

The fourth proportional to 3,131.02, 4,696.42 and 1,488.74 is: 2,233.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.02 : 4,696.42 = 1,488.74 : x
  2. Step 2: Convert to fraction form
    3,131.02/4,696.42 = 1,488.74/x
  3. Step 3: Cross multiply
    3,131.02x = 4,696.42 × 1,488.74
  4. Step 4: Simplify right side
    3,131.02x = 6,991,748.31
  5. Step 5: Solve for x
    x = 6,991,748.31/3,131.02
  6. Step 6: Final answer
    x = 2,233.06

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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.