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Finding the Fourth Proportional to 1,512.36, 2,268.54 and 472.34

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Solution

The fourth proportional to 1,512.36, 2,268.54 and 472.34 is: 708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.36 : 2,268.54 = 472.34 : x
  2. Step 2: Convert to fraction form
    1,512.36/2,268.54 = 472.34/x
  3. Step 3: Cross multiply
    1,512.36x = 2,268.54 × 472.34
  4. Step 4: Simplify right side
    1,512.36x = 1,071,522.18
  5. Step 5: Solve for x
    x = 1,071,522.18/1,512.36
  6. Step 6: Final answer
    x = 708.51

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Double scale
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Similar ratio
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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.