Home / 4,134-5,688.18-3,990.36

Finding the Fourth Proportional to 4,134, 5,688.18 and 3,990.36

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Solution

The fourth proportional to 4,134, 5,688.18 and 3,990.36 is: 5,490.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,134 : 5,688.18 = 3,990.36 : x
  2. Step 2: Convert to fraction form
    4,134/5,688.18 = 3,990.36/x
  3. Step 3: Cross multiply
    4,134x = 5,688.18 × 3,990.36
  4. Step 4: Simplify right side
    4,134x = 22,697,885.94
  5. Step 5: Solve for x
    x = 22,697,885.94/4,134
  6. Step 6: Final answer
    x = 5,490.54

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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.