Home / 5,131.17-7,696.67-1,668.42

Finding the Fourth Proportional to 5,131.17, 7,696.67 and 1,668.42

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Solution

The fourth proportional to 5,131.17, 7,696.67 and 1,668.42 is: 2,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.17 : 7,696.67 = 1,668.42 : x
  2. Step 2: Convert to fraction form
    5,131.17/7,696.67 = 1,668.42/x
  3. Step 3: Cross multiply
    5,131.17x = 7,696.67 × 1,668.42
  4. Step 4: Simplify right side
    5,131.17x = 12,841,269.82
  5. Step 5: Solve for x
    x = 12,841,269.82/5,131.17
  6. Step 6: Final answer
    x = 2,502.60

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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.