Home / 3,014.54-4,528.74-2,139.21

Finding the Fourth Proportional to 3,014.54, 4,528.74 and 2,139.21

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Solution

The fourth proportional to 3,014.54, 4,528.74 and 2,139.21 is: 3,213.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.54 : 4,528.74 = 2,139.21 : x
  2. Step 2: Convert to fraction form
    3,014.54/4,528.74 = 2,139.21/x
  3. Step 3: Cross multiply
    3,014.54x = 4,528.74 × 2,139.21
  4. Step 4: Simplify right side
    3,014.54x = 9,687,925.90
  5. Step 5: Solve for x
    x = 9,687,925.90/3,014.54
  6. Step 6: Final answer
    x = 3,213.73

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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.