Home / 6,222.77-8,587.61-3,390.33

Finding the Fourth Proportional to 6,222.77, 8,587.61 and 3,390.33

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Solution

The fourth proportional to 6,222.77, 8,587.61 and 3,390.33 is: 4,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.77 : 8,587.61 = 3,390.33 : x
  2. Step 2: Convert to fraction form
    6,222.77/8,587.61 = 3,390.33/x
  3. Step 3: Cross multiply
    6,222.77x = 8,587.61 × 3,390.33
  4. Step 4: Simplify right side
    6,222.77x = 29,114,831.81
  5. Step 5: Solve for x
    x = 29,114,831.81/6,222.77
  6. Step 6: Final answer
    x = 4,678.76

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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.