Home / 6,438.21-8,882.65-3,605.16

Finding the Fourth Proportional to 6,438.21, 8,882.65 and 3,605.16

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Solution

The fourth proportional to 6,438.21, 8,882.65 and 3,605.16 is: 4,973.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.21 : 8,882.65 = 3,605.16 : x
  2. Step 2: Convert to fraction form
    6,438.21/8,882.65 = 3,605.16/x
  3. Step 3: Cross multiply
    6,438.21x = 8,882.65 × 3,605.16
  4. Step 4: Simplify right side
    6,438.21x = 32,023,374.47
  5. Step 5: Solve for x
    x = 32,023,374.47/6,438.21
  6. Step 6: Final answer
    x = 4,973.96

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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.