Home / 3,631.49-5,442.45-1,439.02

Finding the Fourth Proportional to 3,631.49, 5,442.45 and 1,439.02

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Solution

The fourth proportional to 3,631.49, 5,442.45 and 1,439.02 is: 2,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.49 : 5,442.45 = 1,439.02 : x
  2. Step 2: Convert to fraction form
    3,631.49/5,442.45 = 1,439.02/x
  3. Step 3: Cross multiply
    3,631.49x = 5,442.45 × 1,439.02
  4. Step 4: Simplify right side
    3,631.49x = 7,831,795.81
  5. Step 5: Solve for x
    x = 7,831,795.81/3,631.49
  6. Step 6: Final answer
    x = 2,156.64

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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.