Home / 5,432.36-8,149.56-2,145.48

Finding the Fourth Proportional to 5,432.36, 8,149.56 and 2,145.48

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Solution

The fourth proportional to 5,432.36, 8,149.56 and 2,145.48 is: 3,218.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.36 : 8,149.56 = 2,145.48 : x
  2. Step 2: Convert to fraction form
    5,432.36/8,149.56 = 2,145.48/x
  3. Step 3: Cross multiply
    5,432.36x = 8,149.56 × 2,145.48
  4. Step 4: Simplify right side
    5,432.36x = 17,484,717.99
  5. Step 5: Solve for x
    x = 17,484,717.99/5,432.36
  6. Step 6: Final answer
    x = 3,218.63

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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.