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Finding the Fourth Proportional to 3,068.86, 4,235.02 and 1,671.60

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Solution

The fourth proportional to 3,068.86, 4,235.02 and 1,671.60 is: 2,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.86 : 4,235.02 = 1,671.60 : x
  2. Step 2: Convert to fraction form
    3,068.86/4,235.02 = 1,671.60/x
  3. Step 3: Cross multiply
    3,068.86x = 4,235.02 × 1,671.60
  4. Step 4: Simplify right side
    3,068.86x = 7,079,259.43
  5. Step 5: Solve for x
    x = 7,079,259.43/3,068.86
  6. Step 6: Final answer
    x = 2,306.80

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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.