Home / 4,740.70-7,112.88-1,818.32

Finding the Fourth Proportional to 4,740.70, 7,112.88 and 1,818.32

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Solution

The fourth proportional to 4,740.70, 7,112.88 and 1,818.32 is: 2,728.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.70 : 7,112.88 = 1,818.32 : x
  2. Step 2: Convert to fraction form
    4,740.70/7,112.88 = 1,818.32/x
  3. Step 3: Cross multiply
    4,740.70x = 7,112.88 × 1,818.32
  4. Step 4: Simplify right side
    4,740.70x = 12,933,491.96
  5. Step 5: Solve for x
    x = 12,933,491.96/4,740.70
  6. Step 6: Final answer
    x = 2,728.18

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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.