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Finding the Fourth Proportional to 1,624.35, 2,434.91 and 803.22

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Solution

The fourth proportional to 1,624.35, 2,434.91 and 803.22 is: 1,204.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.35 : 2,434.91 = 803.22 : x
  2. Step 2: Convert to fraction form
    1,624.35/2,434.91 = 803.22/x
  3. Step 3: Cross multiply
    1,624.35x = 2,434.91 × 803.22
  4. Step 4: Simplify right side
    1,624.35x = 1,955,764.39
  5. Step 5: Solve for x
    x = 1,955,764.39/1,624.35
  6. Step 6: Final answer
    x = 1,204.03

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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.