Home / 4,871.32-6,718.89-3,379.30

Finding the Fourth Proportional to 4,871.32, 6,718.89 and 3,379.30

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Solution

The fourth proportional to 4,871.32, 6,718.89 and 3,379.30 is: 4,660.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.32 : 6,718.89 = 3,379.30 : x
  2. Step 2: Convert to fraction form
    4,871.32/6,718.89 = 3,379.30/x
  3. Step 3: Cross multiply
    4,871.32x = 6,718.89 × 3,379.30
  4. Step 4: Simplify right side
    4,871.32x = 22,705,144.98
  5. Step 5: Solve for x
    x = 22,705,144.98/4,871.32
  6. Step 6: Final answer
    x = 4,660.98

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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.