Home / 5,905.15-8,148.86-3,385.51

Finding the Fourth Proportional to 5,905.15, 8,148.86 and 3,385.51

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Solution

The fourth proportional to 5,905.15, 8,148.86 and 3,385.51 is: 4,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.15 : 8,148.86 = 3,385.51 : x
  2. Step 2: Convert to fraction form
    5,905.15/8,148.86 = 3,385.51/x
  3. Step 3: Cross multiply
    5,905.15x = 8,148.86 × 3,385.51
  4. Step 4: Simplify right side
    5,905.15x = 27,587,989.35
  5. Step 5: Solve for x
    x = 27,587,989.35/5,905.15
  6. Step 6: Final answer
    x = 4,671.85

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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.