Home / 4,217.40-6,320.63-2,828.66

Finding the Fourth Proportional to 4,217.40, 6,320.63 and 2,828.66

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Solution

The fourth proportional to 4,217.40, 6,320.63 and 2,828.66 is: 4,239.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.40 : 6,320.63 = 2,828.66 : x
  2. Step 2: Convert to fraction form
    4,217.40/6,320.63 = 2,828.66/x
  3. Step 3: Cross multiply
    4,217.40x = 6,320.63 × 2,828.66
  4. Step 4: Simplify right side
    4,217.40x = 17,878,888.72
  5. Step 5: Solve for x
    x = 17,878,888.72/4,217.40
  6. Step 6: Final answer
    x = 4,239.32

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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.