Home / 2,318.57-3,477.80-1,087.37

Finding the Fourth Proportional to 2,318.57, 3,477.80 and 1,087.37

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Solution

The fourth proportional to 2,318.57, 3,477.80 and 1,087.37 is: 1,631.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.57 : 3,477.80 = 1,087.37 : x
  2. Step 2: Convert to fraction form
    2,318.57/3,477.80 = 1,087.37/x
  3. Step 3: Cross multiply
    2,318.57x = 3,477.80 × 1,087.37
  4. Step 4: Simplify right side
    2,318.57x = 3,781,673.32
  5. Step 5: Solve for x
    x = 3,781,673.32/2,318.57
  6. Step 6: Final answer
    x = 1,631.03

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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.