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Finding the Fourth Proportional to 1,867.92, 2,802.13 and 635.00

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Solution

The fourth proportional to 1,867.92, 2,802.13 and 635.00 is: 952.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.92 : 2,802.13 = 635.00 : x
  2. Step 2: Convert to fraction form
    1,867.92/2,802.13 = 635.00/x
  3. Step 3: Cross multiply
    1,867.92x = 2,802.13 × 635.00
  4. Step 4: Simplify right side
    1,867.92x = 1,779,336.95
  5. Step 5: Solve for x
    x = 1,779,336.95/1,867.92
  6. Step 6: Final answer
    x = 952.58

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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.