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Finding the Fourth Proportional to 848.37, 1,172.22 and 653.56

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Solution

The fourth proportional to 848.37, 1,172.22 and 653.56 is: 903.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.37 : 1,172.22 = 653.56 : x
  2. Step 2: Convert to fraction form
    848.37/1,172.22 = 653.56/x
  3. Step 3: Cross multiply
    848.37x = 1,172.22 × 653.56
  4. Step 4: Simplify right side
    848.37x = 766,116.10
  5. Step 5: Solve for x
    x = 766,116.10/848.37
  6. Step 6: Final answer
    x = 903.04

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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.