Home / 3,189.87-4,402.60-2,386.37

Finding the Fourth Proportional to 3,189.87, 4,402.60 and 2,386.37

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Solution

The fourth proportional to 3,189.87, 4,402.60 and 2,386.37 is: 3,293.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.87 : 4,402.60 = 2,386.37 : x
  2. Step 2: Convert to fraction form
    3,189.87/4,402.60 = 2,386.37/x
  3. Step 3: Cross multiply
    3,189.87x = 4,402.60 × 2,386.37
  4. Step 4: Simplify right side
    3,189.87x = 10,506,237.60
  5. Step 5: Solve for x
    x = 10,506,237.60/3,189.87
  6. Step 6: Final answer
    x = 3,293.63

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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.