Home / 6,222.92-8,587.61-3,390.45

Finding the Fourth Proportional to 6,222.92, 8,587.61 and 3,390.45

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Solution

The fourth proportional to 6,222.92, 8,587.61 and 3,390.45 is: 4,678.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.92 : 8,587.61 = 3,390.45 : x
  2. Step 2: Convert to fraction form
    6,222.92/8,587.61 = 3,390.45/x
  3. Step 3: Cross multiply
    6,222.92x = 8,587.61 × 3,390.45
  4. Step 4: Simplify right side
    6,222.92x = 29,115,862.32
  5. Step 5: Solve for x
    x = 29,115,862.32/6,222.92
  6. Step 6: Final answer
    x = 4,678.81

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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.