Home / 5,621.53-8,433.50-2,158.75

Finding the Fourth Proportional to 5,621.53, 8,433.50 and 2,158.75

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Solution

The fourth proportional to 5,621.53, 8,433.50 and 2,158.75 is: 3,238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.53 : 8,433.50 = 2,158.75 : x
  2. Step 2: Convert to fraction form
    5,621.53/8,433.50 = 2,158.75/x
  3. Step 3: Cross multiply
    5,621.53x = 8,433.50 × 2,158.75
  4. Step 4: Simplify right side
    5,621.53x = 18,205,818.13
  5. Step 5: Solve for x
    x = 18,205,818.13/5,621.53
  6. Step 6: Final answer
    x = 3,238.59

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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.