Home / 2,187.79-3,281.67-1,017.64

Finding the Fourth Proportional to 2,187.79, 3,281.67 and 1,017.64

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Solution

The fourth proportional to 2,187.79, 3,281.67 and 1,017.64 is: 1,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.79 : 3,281.67 = 1,017.64 : x
  2. Step 2: Convert to fraction form
    2,187.79/3,281.67 = 1,017.64/x
  3. Step 3: Cross multiply
    2,187.79x = 3,281.67 × 1,017.64
  4. Step 4: Simplify right side
    2,187.79x = 3,339,558.66
  5. Step 5: Solve for x
    x = 3,339,558.66/2,187.79
  6. Step 6: Final answer
    x = 1,526.45

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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.