Home / 3,688.61-5,086.46-2,849.45

Finding the Fourth Proportional to 3,688.61, 5,086.46 and 2,849.45

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Solution

The fourth proportional to 3,688.61, 5,086.46 and 2,849.45 is: 3,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.61 : 5,086.46 = 2,849.45 : x
  2. Step 2: Convert to fraction form
    3,688.61/5,086.46 = 2,849.45/x
  3. Step 3: Cross multiply
    3,688.61x = 5,086.46 × 2,849.45
  4. Step 4: Simplify right side
    3,688.61x = 14,493,573.77
  5. Step 5: Solve for x
    x = 14,493,573.77/3,688.61
  6. Step 6: Final answer
    x = 3,929.28

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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.