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Finding the Fourth Proportional to 2,269.91, 3,406.18 and 953.55

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Solution

The fourth proportional to 2,269.91, 3,406.18 and 953.55 is: 1,430.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.91 : 3,406.18 = 953.55 : x
  2. Step 2: Convert to fraction form
    2,269.91/3,406.18 = 953.55/x
  3. Step 3: Cross multiply
    2,269.91x = 3,406.18 × 953.55
  4. Step 4: Simplify right side
    2,269.91x = 3,247,962.94
  5. Step 5: Solve for x
    x = 3,247,962.94/2,269.91
  6. Step 6: Final answer
    x = 1,430.88

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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.