Home / 6,402.25-8,835.65-3,608.29

Finding the Fourth Proportional to 6,402.25, 8,835.65 and 3,608.29

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Solution

The fourth proportional to 6,402.25, 8,835.65 and 3,608.29 is: 4,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402.25 : 8,835.65 = 3,608.29 : x
  2. Step 2: Convert to fraction form
    6,402.25/8,835.65 = 3,608.29/x
  3. Step 3: Cross multiply
    6,402.25x = 8,835.65 × 3,608.29
  4. Step 4: Simplify right side
    6,402.25x = 31,881,587.54
  5. Step 5: Solve for x
    x = 31,881,587.54/6,402.25
  6. Step 6: Final answer
    x = 4,979.75

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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.