Home / 5,905.18-8,149.19-3,387.40

Finding the Fourth Proportional to 5,905.18, 8,149.19 and 3,387.40

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Solution

The fourth proportional to 5,905.18, 8,149.19 and 3,387.40 is: 4,674.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.18 : 8,149.19 = 3,387.40 : x
  2. Step 2: Convert to fraction form
    5,905.18/8,149.19 = 3,387.40/x
  3. Step 3: Cross multiply
    5,905.18x = 8,149.19 × 3,387.40
  4. Step 4: Simplify right side
    5,905.18x = 27,604,566.21
  5. Step 5: Solve for x
    x = 27,604,566.21/5,905.18
  6. Step 6: Final answer
    x = 4,674.64

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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.