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Finding the Fourth Proportional to 1,231.56, 1,848.06 and 462.12

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Solution

The fourth proportional to 1,231.56, 1,848.06 and 462.12 is: 693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.56 : 1,848.06 = 462.12 : x
  2. Step 2: Convert to fraction form
    1,231.56/1,848.06 = 462.12/x
  3. Step 3: Cross multiply
    1,231.56x = 1,848.06 × 462.12
  4. Step 4: Simplify right side
    1,231.56x = 854,025.49
  5. Step 5: Solve for x
    x = 854,025.49/1,231.56
  6. Step 6: Final answer
    x = 693.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.