Home / 5,125.59-7,688.39-3,393.81

Finding the Fourth Proportional to 5,125.59, 7,688.39 and 3,393.81

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Solution

The fourth proportional to 5,125.59, 7,688.39 and 3,393.81 is: 5,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.59 : 7,688.39 = 3,393.81 : x
  2. Step 2: Convert to fraction form
    5,125.59/7,688.39 = 3,393.81/x
  3. Step 3: Cross multiply
    5,125.59x = 7,688.39 × 3,393.81
  4. Step 4: Simplify right side
    5,125.59x = 26,092,917.90
  5. Step 5: Solve for x
    x = 26,092,917.90/5,125.59
  6. Step 6: Final answer
    x = 5,090.72

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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.