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Finding the Fourth Proportional to 1,095.94, 1,512.26 and 653.76

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Solution

The fourth proportional to 1,095.94, 1,512.26 and 653.76 is: 902.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.94 : 1,512.26 = 653.76 : x
  2. Step 2: Convert to fraction form
    1,095.94/1,512.26 = 653.76/x
  3. Step 3: Cross multiply
    1,095.94x = 1,512.26 × 653.76
  4. Step 4: Simplify right side
    1,095.94x = 988,655.10
  5. Step 5: Solve for x
    x = 988,655.10/1,095.94
  6. Step 6: Final answer
    x = 902.11

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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.