Home / 3,787.06-5,225.34-2,389

Finding the Fourth Proportional to 3,787.06, 5,225.34 and 2,389

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Solution

The fourth proportional to 3,787.06, 5,225.34 and 2,389 is: 3,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.06 : 5,225.34 = 2,389 : x
  2. Step 2: Convert to fraction form
    3,787.06/5,225.34 = 2,389/x
  3. Step 3: Cross multiply
    3,787.06x = 5,225.34 × 2,389
  4. Step 4: Simplify right side
    3,787.06x = 12,483,337.26
  5. Step 5: Solve for x
    x = 12,483,337.26/3,787.06
  6. Step 6: Final answer
    x = 3,296.31

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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.