Home / 4,217.52-6,325.74-1,621.20

Finding the Fourth Proportional to 4,217.52, 6,325.74 and 1,621.20

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Solution

The fourth proportional to 4,217.52, 6,325.74 and 1,621.20 is: 2,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.52 : 6,325.74 = 1,621.20 : x
  2. Step 2: Convert to fraction form
    4,217.52/6,325.74 = 1,621.20/x
  3. Step 3: Cross multiply
    4,217.52x = 6,325.74 × 1,621.20
  4. Step 4: Simplify right side
    4,217.52x = 10,255,289.69
  5. Step 5: Solve for x
    x = 10,255,289.69/4,217.52
  6. Step 6: Final answer
    x = 2,431.59

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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.