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Finding the Fourth Proportional to 1,373.58, 1,893.63 and 1,162.92

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Solution

The fourth proportional to 1,373.58, 1,893.63 and 1,162.92 is: 1,603.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373.58 : 1,893.63 = 1,162.92 : x
  2. Step 2: Convert to fraction form
    1,373.58/1,893.63 = 1,162.92/x
  3. Step 3: Cross multiply
    1,373.58x = 1,893.63 × 1,162.92
  4. Step 4: Simplify right side
    1,373.58x = 2,202,140.20
  5. Step 5: Solve for x
    x = 2,202,140.20/1,373.58
  6. Step 6: Final answer
    x = 1,603.21

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1.5x scale

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.