Home / 4,740.68-7,112.84-1,818.30

Finding the Fourth Proportional to 4,740.68, 7,112.84 and 1,818.30

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Solution

The fourth proportional to 4,740.68, 7,112.84 and 1,818.30 is: 2,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.68 : 7,112.84 = 1,818.30 : x
  2. Step 2: Convert to fraction form
    4,740.68/7,112.84 = 1,818.30/x
  3. Step 3: Cross multiply
    4,740.68x = 7,112.84 × 1,818.30
  4. Step 4: Simplify right side
    4,740.68x = 12,933,267.88
  5. Step 5: Solve for x
    x = 12,933,267.88/4,740.68
  6. Step 6: Final answer
    x = 2,728.15

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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.