Home / 4,217.65-6,330.35-2,139.10

Finding the Fourth Proportional to 4,217.65, 6,330.35 and 2,139.10

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Solution

The fourth proportional to 4,217.65, 6,330.35 and 2,139.10 is: 3,210.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.65 : 6,330.35 = 2,139.10 : x
  2. Step 2: Convert to fraction form
    4,217.65/6,330.35 = 2,139.10/x
  3. Step 3: Cross multiply
    4,217.65x = 6,330.35 × 2,139.10
  4. Step 4: Simplify right side
    4,217.65x = 13,541,240.99
  5. Step 5: Solve for x
    x = 13,541,240.99/4,217.65
  6. Step 6: Final answer
    x = 3,210.61

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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.