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Finding the Fourth Proportional to 1,373.06, 1,897.94 and 1,264.07

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Solution

The fourth proportional to 1,373.06, 1,897.94 and 1,264.07 is: 1,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373.06 : 1,897.94 = 1,264.07 : x
  2. Step 2: Convert to fraction form
    1,373.06/1,897.94 = 1,264.07/x
  3. Step 3: Cross multiply
    1,373.06x = 1,897.94 × 1,264.07
  4. Step 4: Simplify right side
    1,373.06x = 2,399,130.60
  5. Step 5: Solve for x
    x = 2,399,130.60/1,373.06
  6. Step 6: Final answer
    x = 1,747.29

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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.