Home / 2,578.46-3,867.66-1,787.10

Finding the Fourth Proportional to 2,578.46, 3,867.66 and 1,787.10

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Solution

The fourth proportional to 2,578.46, 3,867.66 and 1,787.10 is: 2,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.46 : 3,867.66 = 1,787.10 : x
  2. Step 2: Convert to fraction form
    2,578.46/3,867.66 = 1,787.10/x
  3. Step 3: Cross multiply
    2,578.46x = 3,867.66 × 1,787.10
  4. Step 4: Simplify right side
    2,578.46x = 6,911,895.19
  5. Step 5: Solve for x
    x = 6,911,895.19/2,578.46
  6. Step 6: Final answer
    x = 2,680.63

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1.5x scale

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.