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Finding the Fourth Proportional to 1,875.33, 2,812.95 and 835.07

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Solution

The fourth proportional to 1,875.33, 2,812.95 and 835.07 is: 1,252.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.33 : 2,812.95 = 835.07 : x
  2. Step 2: Convert to fraction form
    1,875.33/2,812.95 = 835.07/x
  3. Step 3: Cross multiply
    1,875.33x = 2,812.95 × 835.07
  4. Step 4: Simplify right side
    1,875.33x = 2,348,996.09
  5. Step 5: Solve for x
    x = 2,348,996.09/1,875.33
  6. Step 6: Final answer
    x = 1,252.58

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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.