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Finding the Fourth Proportional to 2,671.79, 3,687.07 and 1,476.86

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Solution

The fourth proportional to 2,671.79, 3,687.07 and 1,476.86 is: 2,038.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.79 : 3,687.07 = 1,476.86 : x
  2. Step 2: Convert to fraction form
    2,671.79/3,687.07 = 1,476.86/x
  3. Step 3: Cross multiply
    2,671.79x = 3,687.07 × 1,476.86
  4. Step 4: Simplify right side
    2,671.79x = 5,445,277.21
  5. Step 5: Solve for x
    x = 5,445,277.21/2,671.79
  6. Step 6: Final answer
    x = 2,038.07

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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.