Home / 3,187.49-4,782.56-1,724.90

Finding the Fourth Proportional to 3,187.49, 4,782.56 and 1,724.90

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Solution

The fourth proportional to 3,187.49, 4,782.56 and 1,724.90 is: 2,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.49 : 4,782.56 = 1,724.90 : x
  2. Step 2: Convert to fraction form
    3,187.49/4,782.56 = 1,724.90/x
  3. Step 3: Cross multiply
    3,187.49x = 4,782.56 × 1,724.90
  4. Step 4: Simplify right side
    3,187.49x = 8,249,441.08
  5. Step 5: Solve for x
    x = 8,249,441.08/3,187.49
  6. Step 6: Final answer
    x = 2,588.07

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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.