Home / 6,222.93-8,587.77-3,390.31

Finding the Fourth Proportional to 6,222.93, 8,587.77 and 3,390.31

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Solution

The fourth proportional to 6,222.93, 8,587.77 and 3,390.31 is: 4,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.93 : 8,587.77 = 3,390.31 : x
  2. Step 2: Convert to fraction form
    6,222.93/8,587.77 = 3,390.31/x
  3. Step 3: Cross multiply
    6,222.93x = 8,587.77 × 3,390.31
  4. Step 4: Simplify right side
    6,222.93x = 29,115,171.29
  5. Step 5: Solve for x
    x = 29,115,171.29/6,222.93
  6. Step 6: Final answer
    x = 4,678.69

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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.