Home / 6,438.29-8,885.09-3,605.72

Finding the Fourth Proportional to 6,438.29, 8,885.09 and 3,605.72

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Solution

The fourth proportional to 6,438.29, 8,885.09 and 3,605.72 is: 4,976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.29 : 8,885.09 = 3,605.72 : x
  2. Step 2: Convert to fraction form
    6,438.29/8,885.09 = 3,605.72/x
  3. Step 3: Cross multiply
    6,438.29x = 8,885.09 × 3,605.72
  4. Step 4: Simplify right side
    6,438.29x = 32,037,111.30
  5. Step 5: Solve for x
    x = 32,037,111.30/6,438.29
  6. Step 6: Final answer
    x = 4,976.03

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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.