Home / 2,787.50-4,180.91-1,618.14

Finding the Fourth Proportional to 2,787.50, 4,180.91 and 1,618.14

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Solution

The fourth proportional to 2,787.50, 4,180.91 and 1,618.14 is: 2,427.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.50 : 4,180.91 = 1,618.14 : x
  2. Step 2: Convert to fraction form
    2,787.50/4,180.91 = 1,618.14/x
  3. Step 3: Cross multiply
    2,787.50x = 4,180.91 × 1,618.14
  4. Step 4: Simplify right side
    2,787.50x = 6,765,297.71
  5. Step 5: Solve for x
    x = 6,765,297.71/2,787.50
  6. Step 6: Final answer
    x = 2,427.01

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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.