Home / 1,681.36-2,520.17-1,269.16

Finding the Fourth Proportional to 1,681.36, 2,520.17 and 1,269.16

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Solution

The fourth proportional to 1,681.36, 2,520.17 and 1,269.16 is: 1,902.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.36 : 2,520.17 = 1,269.16 : x
  2. Step 2: Convert to fraction form
    1,681.36/2,520.17 = 1,269.16/x
  3. Step 3: Cross multiply
    1,681.36x = 2,520.17 × 1,269.16
  4. Step 4: Simplify right side
    1,681.36x = 3,198,498.96
  5. Step 5: Solve for x
    x = 3,198,498.96/1,681.36
  6. Step 6: Final answer
    x = 1,902.33

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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.