Home / 5,871.63-8,102.85-3,387.63

Finding the Fourth Proportional to 5,871.63, 8,102.85 and 3,387.63

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Solution

The fourth proportional to 5,871.63, 8,102.85 and 3,387.63 is: 4,674.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.63 : 8,102.85 = 3,387.63 : x
  2. Step 2: Convert to fraction form
    5,871.63/8,102.85 = 3,387.63/x
  3. Step 3: Cross multiply
    5,871.63x = 8,102.85 × 3,387.63
  4. Step 4: Simplify right side
    5,871.63x = 27,449,457.75
  5. Step 5: Solve for x
    x = 27,449,457.75/5,871.63
  6. Step 6: Final answer
    x = 4,674.93

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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.