Home / 2,864.36-3,953.58-1,685.80

Finding the Fourth Proportional to 2,864.36, 3,953.58 and 1,685.80

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Solution

The fourth proportional to 2,864.36, 3,953.58 and 1,685.80 is: 2,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.36 : 3,953.58 = 1,685.80 : x
  2. Step 2: Convert to fraction form
    2,864.36/3,953.58 = 1,685.80/x
  3. Step 3: Cross multiply
    2,864.36x = 3,953.58 × 1,685.80
  4. Step 4: Simplify right side
    2,864.36x = 6,664,945.16
  5. Step 5: Solve for x
    x = 6,664,945.16/2,864.36
  6. Step 6: Final answer
    x = 2,326.85

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