Home / 4,787.40-7,181.10-4,722.60

Finding the Fourth Proportional to 4,787.40, 7,181.10 and 4,722.60

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Solution

The fourth proportional to 4,787.40, 7,181.10 and 4,722.60 is: 7,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.40 : 7,181.10 = 4,722.60 : x
  2. Step 2: Convert to fraction form
    4,787.40/7,181.10 = 4,722.60/x
  3. Step 3: Cross multiply
    4,787.40x = 7,181.10 × 4,722.60
  4. Step 4: Simplify right side
    4,787.40x = 33,913,462.86
  5. Step 5: Solve for x
    x = 33,913,462.86/4,787.40
  6. Step 6: Final answer
    x = 7,083.90

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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.