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Finding the Fourth Proportional to 2,672.86, 3,688.48 and 1,477.94

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Solution

The fourth proportional to 2,672.86, 3,688.48 and 1,477.94 is: 2,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.86 : 3,688.48 = 1,477.94 : x
  2. Step 2: Convert to fraction form
    2,672.86/3,688.48 = 1,477.94/x
  3. Step 3: Cross multiply
    2,672.86x = 3,688.48 × 1,477.94
  4. Step 4: Simplify right side
    2,672.86x = 5,451,329.99
  5. Step 5: Solve for x
    x = 5,451,329.99/2,672.86
  6. Step 6: Final answer
    x = 2,039.51

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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.