Home / 8,290.48-12,431.40-3,092.08

Finding the Fourth Proportional to 8,290.48, 12,431.40 and 3,092.08

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Solution

The fourth proportional to 8,290.48, 12,431.40 and 3,092.08 is: 4,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.48 : 12,431.40 = 3,092.08 : x
  2. Step 2: Convert to fraction form
    8,290.48/12,431.40 = 3,092.08/x
  3. Step 3: Cross multiply
    8,290.48x = 12,431.40 × 3,092.08
  4. Step 4: Simplify right side
    8,290.48x = 38,438,883.31
  5. Step 5: Solve for x
    x = 38,438,883.31/8,290.48
  6. Step 6: Final answer
    x = 4,636.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.