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Finding the Fourth Proportional to 1,152.10, 1,728.67 and 604.16

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Solution

The fourth proportional to 1,152.10, 1,728.67 and 604.16 is: 906.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.10 : 1,728.67 = 604.16 : x
  2. Step 2: Convert to fraction form
    1,152.10/1,728.67 = 604.16/x
  3. Step 3: Cross multiply
    1,152.10x = 1,728.67 × 604.16
  4. Step 4: Simplify right side
    1,152.10x = 1,044,393.27
  5. Step 5: Solve for x
    x = 1,044,393.27/1,152.10
  6. Step 6: Final answer
    x = 906.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.