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Finding the Fourth Proportional to 1,522.76, 2,101.20 and 893.44

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Solution

The fourth proportional to 1,522.76, 2,101.20 and 893.44 is: 1,232.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522.76 : 2,101.20 = 893.44 : x
  2. Step 2: Convert to fraction form
    1,522.76/2,101.20 = 893.44/x
  3. Step 3: Cross multiply
    1,522.76x = 2,101.20 × 893.44
  4. Step 4: Simplify right side
    1,522.76x = 1,877,296.13
  5. Step 5: Solve for x
    x = 1,877,296.13/1,522.76
  6. Step 6: Final answer
    x = 1,232.82

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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.