Home / 3,189.40-4,405.46-2,452.40

Finding the Fourth Proportional to 3,189.40, 4,405.46 and 2,452.40

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Solution

The fourth proportional to 3,189.40, 4,405.46 and 2,452.40 is: 3,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.40 : 4,405.46 = 2,452.40 : x
  2. Step 2: Convert to fraction form
    3,189.40/4,405.46 = 2,452.40/x
  3. Step 3: Cross multiply
    3,189.40x = 4,405.46 × 2,452.40
  4. Step 4: Simplify right side
    3,189.40x = 10,803,950.10
  5. Step 5: Solve for x
    x = 10,803,950.10/3,189.40
  6. Step 6: Final answer
    x = 3,387.46

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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.