Home / 6,871.20-9,482.72-3,887.16

Finding the Fourth Proportional to 6,871.20, 9,482.72 and 3,887.16

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Solution

The fourth proportional to 6,871.20, 9,482.72 and 3,887.16 is: 5,364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.20 : 9,482.72 = 3,887.16 : x
  2. Step 2: Convert to fraction form
    6,871.20/9,482.72 = 3,887.16/x
  3. Step 3: Cross multiply
    6,871.20x = 9,482.72 × 3,887.16
  4. Step 4: Simplify right side
    6,871.20x = 36,860,830.44
  5. Step 5: Solve for x
    x = 36,860,830.44/6,871.20
  6. Step 6: Final answer
    x = 5,364.54

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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.