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Finding the Fourth Proportional to 5,159.49, 7,739.19 and 1,696.74

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Solution

The fourth proportional to 5,159.49, 7,739.19 and 1,696.74 is: 2,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.49 : 7,739.19 = 1,696.74 : x
  2. Step 2: Convert to fraction form
    5,159.49/7,739.19 = 1,696.74/x
  3. Step 3: Cross multiply
    5,159.49x = 7,739.19 × 1,696.74
  4. Step 4: Simplify right side
    5,159.49x = 13,131,393.24
  5. Step 5: Solve for x
    x = 13,131,393.24/5,159.49
  6. Step 6: Final answer
    x = 2,545.10

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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.