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Finding the Fourth Proportional to 1,360.92, 1,877.36 and 941.70

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Solution

The fourth proportional to 1,360.92, 1,877.36 and 941.70 is: 1,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.92 : 1,877.36 = 941.70 : x
  2. Step 2: Convert to fraction form
    1,360.92/1,877.36 = 941.70/x
  3. Step 3: Cross multiply
    1,360.92x = 1,877.36 × 941.70
  4. Step 4: Simplify right side
    1,360.92x = 1,767,909.91
  5. Step 5: Solve for x
    x = 1,767,909.91/1,360.92
  6. Step 6: Final answer
    x = 1,299.05

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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.