Home / 4,965.80-6,869.76-4,079.84

Finding the Fourth Proportional to 4,965.80, 6,869.76 and 4,079.84

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Solution

The fourth proportional to 4,965.80, 6,869.76 and 4,079.84 is: 5,644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,965.80 : 6,869.76 = 4,079.84 : x
  2. Step 2: Convert to fraction form
    4,965.80/6,869.76 = 4,079.84/x
  3. Step 3: Cross multiply
    4,965.80x = 6,869.76 × 4,079.84
  4. Step 4: Simplify right side
    4,965.80x = 28,027,521.64
  5. Step 5: Solve for x
    x = 28,027,521.64/4,965.80
  6. Step 6: Final answer
    x = 5,644.11

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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.