Home / 5,475.79-8,211.66-1,964.80

Finding the Fourth Proportional to 5,475.79, 8,211.66 and 1,964.80

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Solution

The fourth proportional to 5,475.79, 8,211.66 and 1,964.80 is: 2,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.79 : 8,211.66 = 1,964.80 : x
  2. Step 2: Convert to fraction form
    5,475.79/8,211.66 = 1,964.80/x
  3. Step 3: Cross multiply
    5,475.79x = 8,211.66 × 1,964.80
  4. Step 4: Simplify right side
    5,475.79x = 16,134,269.57
  5. Step 5: Solve for x
    x = 16,134,269.57/5,475.79
  6. Step 6: Final answer
    x = 2,946.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.