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Finding the Fourth Proportional to 957.93, 1,321.29 and 603.51

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Solution

The fourth proportional to 957.93, 1,321.29 and 603.51 is: 832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.93 : 1,321.29 = 603.51 : x
  2. Step 2: Convert to fraction form
    957.93/1,321.29 = 603.51/x
  3. Step 3: Cross multiply
    957.93x = 1,321.29 × 603.51
  4. Step 4: Simplify right side
    957.93x = 797,411.73
  5. Step 5: Solve for x
    x = 797,411.73/957.93
  6. Step 6: Final answer
    x = 832.43

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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.