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Finding the Fourth Proportional to 3,807.76, 5,254.59 and 2,235.82

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Solution

The fourth proportional to 3,807.76, 5,254.59 and 2,235.82 is: 3,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.76 : 5,254.59 = 2,235.82 : x
  2. Step 2: Convert to fraction form
    3,807.76/5,254.59 = 2,235.82/x
  3. Step 3: Cross multiply
    3,807.76x = 5,254.59 × 2,235.82
  4. Step 4: Simplify right side
    3,807.76x = 11,748,317.41
  5. Step 5: Solve for x
    x = 11,748,317.41/3,807.76
  6. Step 6: Final answer
    x = 3,085.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.