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Finding the Fourth Proportional to 1,026.50, 1,412.79 and 848.03

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Solution

The fourth proportional to 1,026.50, 1,412.79 and 848.03 is: 1,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.50 : 1,412.79 = 848.03 : x
  2. Step 2: Convert to fraction form
    1,026.50/1,412.79 = 848.03/x
  3. Step 3: Cross multiply
    1,026.50x = 1,412.79 × 848.03
  4. Step 4: Simplify right side
    1,026.50x = 1,198,088.30
  5. Step 5: Solve for x
    x = 1,198,088.30/1,026.50
  6. Step 6: Final answer
    x = 1,167.16

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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.