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Finding the Fourth Proportional to 957.62, 1,321.48 and 585.22

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Solution

The fourth proportional to 957.62, 1,321.48 and 585.22 is: 807.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.62 : 1,321.48 = 585.22 : x
  2. Step 2: Convert to fraction form
    957.62/1,321.48 = 585.22/x
  3. Step 3: Cross multiply
    957.62x = 1,321.48 × 585.22
  4. Step 4: Simplify right side
    957.62x = 773,355.06
  5. Step 5: Solve for x
    x = 773,355.06/957.62
  6. Step 6: Final answer
    x = 807.58

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Half scale
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Double scale
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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.