Home / 5,289.05-7,932.95-1,393.76

Finding the Fourth Proportional to 5,289.05, 7,932.95 and 1,393.76

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Solution

The fourth proportional to 5,289.05, 7,932.95 and 1,393.76 is: 2,090.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.05 : 7,932.95 = 1,393.76 : x
  2. Step 2: Convert to fraction form
    5,289.05/7,932.95 = 1,393.76/x
  3. Step 3: Cross multiply
    5,289.05x = 7,932.95 × 1,393.76
  4. Step 4: Simplify right side
    5,289.05x = 11,056,628.39
  5. Step 5: Solve for x
    x = 11,056,628.39/5,289.05
  6. Step 6: Final answer
    x = 2,090.48

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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.