Home / 1,686.82-2,542.69-1,541.02

Finding the Fourth Proportional to 1,686.82, 2,542.69 and 1,541.02

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Solution

The fourth proportional to 1,686.82, 2,542.69 and 1,541.02 is: 2,322.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.82 : 2,542.69 = 1,541.02 : x
  2. Step 2: Convert to fraction form
    1,686.82/2,542.69 = 1,541.02/x
  3. Step 3: Cross multiply
    1,686.82x = 2,542.69 × 1,541.02
  4. Step 4: Simplify right side
    1,686.82x = 3,918,336.14
  5. Step 5: Solve for x
    x = 3,918,336.14/1,686.82
  6. Step 6: Final answer
    x = 2,322.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.