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Finding the Fourth Proportional to 734.99, 1,096.80 and 653.18

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Solution

The fourth proportional to 734.99, 1,096.80 and 653.18 is: 974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.99 : 1,096.80 = 653.18 : x
  2. Step 2: Convert to fraction form
    734.99/1,096.80 = 653.18/x
  3. Step 3: Cross multiply
    734.99x = 1,096.80 × 653.18
  4. Step 4: Simplify right side
    734.99x = 716,399.89
  5. Step 5: Solve for x
    x = 716,399.89/734.99
  6. Step 6: Final answer
    x = 974.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.