Home / 3,274.70-4,909.28-1,325.57

Finding the Fourth Proportional to 3,274.70, 4,909.28 and 1,325.57

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Solution

The fourth proportional to 3,274.70, 4,909.28 and 1,325.57 is: 1,987.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.70 : 4,909.28 = 1,325.57 : x
  2. Step 2: Convert to fraction form
    3,274.70/4,909.28 = 1,325.57/x
  3. Step 3: Cross multiply
    3,274.70x = 4,909.28 × 1,325.57
  4. Step 4: Simplify right side
    3,274.70x = 6,507,563.12
  5. Step 5: Solve for x
    x = 6,507,563.12/3,274.70
  6. Step 6: Final answer
    x = 1,987.23

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1.5x scale

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.