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Finding the Fourth Proportional to 5,871.76, 8,104.08 and 4,387.12

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Solution

The fourth proportional to 5,871.76, 8,104.08 and 4,387.12 is: 6,055.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.76 : 8,104.08 = 4,387.12 : x
  2. Step 2: Convert to fraction form
    5,871.76/8,104.08 = 4,387.12/x
  3. Step 3: Cross multiply
    5,871.76x = 8,104.08 × 4,387.12
  4. Step 4: Simplify right side
    5,871.76x = 35,553,571.45
  5. Step 5: Solve for x
    x = 35,553,571.45/5,871.76
  6. Step 6: Final answer
    x = 6,055.01

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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.