Home / 2,746.50-3,787.32-1,908.15

Finding the Fourth Proportional to 2,746.50, 3,787.32 and 1,908.15

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Solution

The fourth proportional to 2,746.50, 3,787.32 and 1,908.15 is: 2,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.50 : 3,787.32 = 1,908.15 : x
  2. Step 2: Convert to fraction form
    2,746.50/3,787.32 = 1,908.15/x
  3. Step 3: Cross multiply
    2,746.50x = 3,787.32 × 1,908.15
  4. Step 4: Simplify right side
    2,746.50x = 7,226,774.66
  5. Step 5: Solve for x
    x = 7,226,774.66/2,746.50
  6. Step 6: Final answer
    x = 2,631.27

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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.