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Finding the Fourth Proportional to 1,462.43, 2,018.19 and 872.88

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Solution

The fourth proportional to 1,462.43, 2,018.19 and 872.88 is: 1,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.43 : 2,018.19 = 872.88 : x
  2. Step 2: Convert to fraction form
    1,462.43/2,018.19 = 872.88/x
  3. Step 3: Cross multiply
    1,462.43x = 2,018.19 × 872.88
  4. Step 4: Simplify right side
    1,462.43x = 1,761,637.69
  5. Step 5: Solve for x
    x = 1,761,637.69/1,462.43
  6. Step 6: Final answer
    x = 1,204.60

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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.