Home / 1,644.42-2,269.17-945.84

Finding the Fourth Proportional to 1,644.42, 2,269.17 and 945.84

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Solution

The fourth proportional to 1,644.42, 2,269.17 and 945.84 is: 1,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.42 : 2,269.17 = 945.84 : x
  2. Step 2: Convert to fraction form
    1,644.42/2,269.17 = 945.84/x
  3. Step 3: Cross multiply
    1,644.42x = 2,269.17 × 945.84
  4. Step 4: Simplify right side
    1,644.42x = 2,146,271.75
  5. Step 5: Solve for x
    x = 2,146,271.75/1,644.42
  6. Step 6: Final answer
    x = 1,305.18

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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.