Home / 2,385-3,291.60-1,724.04

Finding the Fourth Proportional to 2,385, 3,291.60 and 1,724.04

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Solution

The fourth proportional to 2,385, 3,291.60 and 1,724.04 is: 2,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385 : 3,291.60 = 1,724.04 : x
  2. Step 2: Convert to fraction form
    2,385/3,291.60 = 1,724.04/x
  3. Step 3: Cross multiply
    2,385x = 3,291.60 × 1,724.04
  4. Step 4: Simplify right side
    2,385x = 5,674,850.06
  5. Step 5: Solve for x
    x = 5,674,850.06/2,385
  6. Step 6: Final answer
    x = 2,379.39

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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.