Home / 2,812.36-3,880.74-1,633

Finding the Fourth Proportional to 2,812.36, 3,880.74 and 1,633

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Solution

The fourth proportional to 2,812.36, 3,880.74 and 1,633 is: 2,253.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.36 : 3,880.74 = 1,633 : x
  2. Step 2: Convert to fraction form
    2,812.36/3,880.74 = 1,633/x
  3. Step 3: Cross multiply
    2,812.36x = 3,880.74 × 1,633
  4. Step 4: Simplify right side
    2,812.36x = 6,337,248.42
  5. Step 5: Solve for x
    x = 6,337,248.42/2,812.36
  6. Step 6: Final answer
    x = 2,253.36

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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.