Home / 2,681.55-3,699.62-1,686.92

Finding the Fourth Proportional to 2,681.55, 3,699.62 and 1,686.92

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Solution

The fourth proportional to 2,681.55, 3,699.62 and 1,686.92 is: 2,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.55 : 3,699.62 = 1,686.92 : x
  2. Step 2: Convert to fraction form
    2,681.55/3,699.62 = 1,686.92/x
  3. Step 3: Cross multiply
    2,681.55x = 3,699.62 × 1,686.92
  4. Step 4: Simplify right side
    2,681.55x = 6,240,936.04
  5. Step 5: Solve for x
    x = 6,240,936.04/2,681.55
  6. Step 6: Final answer
    x = 2,327.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.