Home / 6,222.88-8,587.52-3,428.40

Finding the Fourth Proportional to 6,222.88, 8,587.52 and 3,428.40

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Solution

The fourth proportional to 6,222.88, 8,587.52 and 3,428.40 is: 4,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.88 : 8,587.52 = 3,428.40 : x
  2. Step 2: Convert to fraction form
    6,222.88/8,587.52 = 3,428.40/x
  3. Step 3: Cross multiply
    6,222.88x = 8,587.52 × 3,428.40
  4. Step 4: Simplify right side
    6,222.88x = 29,441,453.57
  5. Step 5: Solve for x
    x = 29,441,453.57/6,222.88
  6. Step 6: Final answer
    x = 4,731.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.