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Finding the Fourth Proportional to 1,104.79, 1,657.01 and 374.38

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Solution

The fourth proportional to 1,104.79, 1,657.01 and 374.38 is: 561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.79 : 1,657.01 = 374.38 : x
  2. Step 2: Convert to fraction form
    1,104.79/1,657.01 = 374.38/x
  3. Step 3: Cross multiply
    1,104.79x = 1,657.01 × 374.38
  4. Step 4: Simplify right side
    1,104.79x = 620,351.40
  5. Step 5: Solve for x
    x = 620,351.40/1,104.79
  6. Step 6: Final answer
    x = 561.51

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Double scale
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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.