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Finding the Fourth Proportional to 4,787.88, 7,181.22 and 1,868.24

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Solution

The fourth proportional to 4,787.88, 7,181.22 and 1,868.24 is: 2,802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.88 : 7,181.22 = 1,868.24 : x
  2. Step 2: Convert to fraction form
    4,787.88/7,181.22 = 1,868.24/x
  3. Step 3: Cross multiply
    4,787.88x = 7,181.22 × 1,868.24
  4. Step 4: Simplify right side
    4,787.88x = 13,416,242.45
  5. Step 5: Solve for x
    x = 13,416,242.45/4,787.88
  6. Step 6: Final answer
    x = 2,802.13

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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.