Home / 3,688.42-5,089.95-2,009.86

Finding the Fourth Proportional to 3,688.42, 5,089.95 and 2,009.86

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Solution

The fourth proportional to 3,688.42, 5,089.95 and 2,009.86 is: 2,773.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.42 : 5,089.95 = 2,009.86 : x
  2. Step 2: Convert to fraction form
    3,688.42/5,089.95 = 2,009.86/x
  3. Step 3: Cross multiply
    3,688.42x = 5,089.95 × 2,009.86
  4. Step 4: Simplify right side
    3,688.42x = 10,230,086.91
  5. Step 5: Solve for x
    x = 10,230,086.91/3,688.42
  6. Step 6: Final answer
    x = 2,773.57

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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.