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Finding the Fourth Proportional to 2,669.20, 3,671.20 and 2,337.05

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Solution

The fourth proportional to 2,669.20, 3,671.20 and 2,337.05 is: 3,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.20 : 3,671.20 = 2,337.05 : x
  2. Step 2: Convert to fraction form
    2,669.20/3,671.20 = 2,337.05/x
  3. Step 3: Cross multiply
    2,669.20x = 3,671.20 × 2,337.05
  4. Step 4: Simplify right side
    2,669.20x = 8,579,783.49
  5. Step 5: Solve for x
    x = 8,579,783.49/2,669.20
  6. Step 6: Final answer
    x = 3,214.36

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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.