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Finding the Fourth Proportional to 1,022.06, 1,533.54 and 372.89

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Solution

The fourth proportional to 1,022.06, 1,533.54 and 372.89 is: 559.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.06 : 1,533.54 = 372.89 : x
  2. Step 2: Convert to fraction form
    1,022.06/1,533.54 = 372.89/x
  3. Step 3: Cross multiply
    1,022.06x = 1,533.54 × 372.89
  4. Step 4: Simplify right side
    1,022.06x = 571,841.73
  5. Step 5: Solve for x
    x = 571,841.73/1,022.06
  6. Step 6: Final answer
    x = 559.50

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Double scale
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1.5x scale

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.