Home / 6,421.54-8,861.61-3,588.97

Finding the Fourth Proportional to 6,421.54, 8,861.61 and 3,588.97

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Solution

The fourth proportional to 6,421.54, 8,861.61 and 3,588.97 is: 4,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.54 : 8,861.61 = 3,588.97 : x
  2. Step 2: Convert to fraction form
    6,421.54/8,861.61 = 3,588.97/x
  3. Step 3: Cross multiply
    6,421.54x = 8,861.61 × 3,588.97
  4. Step 4: Simplify right side
    6,421.54x = 31,804,030.29
  5. Step 5: Solve for x
    x = 31,804,030.29/6,421.54
  6. Step 6: Final answer
    x = 4,952.71

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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.