Home / 3,210.48-4,815.16-1,018.72

Finding the Fourth Proportional to 3,210.48, 4,815.16 and 1,018.72

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Solution

The fourth proportional to 3,210.48, 4,815.16 and 1,018.72 is: 1,527.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.48 : 4,815.16 = 1,018.72 : x
  2. Step 2: Convert to fraction form
    3,210.48/4,815.16 = 1,018.72/x
  3. Step 3: Cross multiply
    3,210.48x = 4,815.16 × 1,018.72
  4. Step 4: Simplify right side
    3,210.48x = 4,905,299.80
  5. Step 5: Solve for x
    x = 4,905,299.80/3,210.48
  6. Step 6: Final answer
    x = 1,527.90

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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.