Home / 6,438.96-8,888.40-4,344.30

Finding the Fourth Proportional to 6,438.96, 8,888.40 and 4,344.30

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Solution

The fourth proportional to 6,438.96, 8,888.40 and 4,344.30 is: 5,996.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.96 : 8,888.40 = 4,344.30 : x
  2. Step 2: Convert to fraction form
    6,438.96/8,888.40 = 4,344.30/x
  3. Step 3: Cross multiply
    6,438.96x = 8,888.40 × 4,344.30
  4. Step 4: Simplify right side
    6,438.96x = 38,613,876.12
  5. Step 5: Solve for x
    x = 38,613,876.12/6,438.96
  6. Step 6: Final answer
    x = 5,996.91

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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.