Home / 3,275.21-4,907.34-1,423.55

Finding the Fourth Proportional to 3,275.21, 4,907.34 and 1,423.55

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Solution

The fourth proportional to 3,275.21, 4,907.34 and 1,423.55 is: 2,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.21 : 4,907.34 = 1,423.55 : x
  2. Step 2: Convert to fraction form
    3,275.21/4,907.34 = 1,423.55/x
  3. Step 3: Cross multiply
    3,275.21x = 4,907.34 × 1,423.55
  4. Step 4: Simplify right side
    3,275.21x = 6,985,843.86
  5. Step 5: Solve for x
    x = 6,985,843.86/3,275.21
  6. Step 6: Final answer
    x = 2,132.95

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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.