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Finding the Fourth Proportional to 1,406.92, 1,941.46 and 883.24

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Solution

The fourth proportional to 1,406.92, 1,941.46 and 883.24 is: 1,218.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.92 : 1,941.46 = 883.24 : x
  2. Step 2: Convert to fraction form
    1,406.92/1,941.46 = 883.24/x
  3. Step 3: Cross multiply
    1,406.92x = 1,941.46 × 883.24
  4. Step 4: Simplify right side
    1,406.92x = 1,714,775.13
  5. Step 5: Solve for x
    x = 1,714,775.13/1,406.92
  6. Step 6: Final answer
    x = 1,218.81

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Double scale
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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.