Home / 5,236.64-7,856.02-1,538.98

Finding the Fourth Proportional to 5,236.64, 7,856.02 and 1,538.98

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Solution

The fourth proportional to 5,236.64, 7,856.02 and 1,538.98 is: 2,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.64 : 7,856.02 = 1,538.98 : x
  2. Step 2: Convert to fraction form
    5,236.64/7,856.02 = 1,538.98/x
  3. Step 3: Cross multiply
    5,236.64x = 7,856.02 × 1,538.98
  4. Step 4: Simplify right side
    5,236.64x = 12,090,257.66
  5. Step 5: Solve for x
    x = 12,090,257.66/5,236.64
  6. Step 6: Final answer
    x = 2,308.78

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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.