Home / 2,161.42-2,983.88-1,456.96

Finding the Fourth Proportional to 2,161.42, 2,983.88 and 1,456.96

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Solution

The fourth proportional to 2,161.42, 2,983.88 and 1,456.96 is: 2,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.42 : 2,983.88 = 1,456.96 : x
  2. Step 2: Convert to fraction form
    2,161.42/2,983.88 = 1,456.96/x
  3. Step 3: Cross multiply
    2,161.42x = 2,983.88 × 1,456.96
  4. Step 4: Simplify right side
    2,161.42x = 4,347,393.80
  5. Step 5: Solve for x
    x = 4,347,393.80/2,161.42
  6. Step 6: Final answer
    x = 2,011.36

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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.