Home / 2,447.32-3,378.20-1,787.56

Finding the Fourth Proportional to 2,447.32, 3,378.20 and 1,787.56

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Solution

The fourth proportional to 2,447.32, 3,378.20 and 1,787.56 is: 2,467.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.32 : 3,378.20 = 1,787.56 : x
  2. Step 2: Convert to fraction form
    2,447.32/3,378.20 = 1,787.56/x
  3. Step 3: Cross multiply
    2,447.32x = 3,378.20 × 1,787.56
  4. Step 4: Simplify right side
    2,447.32x = 6,038,735.19
  5. Step 5: Solve for x
    x = 6,038,735.19/2,447.32
  6. Step 6: Final answer
    x = 2,467.49

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1.5x scale

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.