Home / 3,210.18-4,815.90-1,262.40

Finding the Fourth Proportional to 3,210.18, 4,815.90 and 1,262.40

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Solution

The fourth proportional to 3,210.18, 4,815.90 and 1,262.40 is: 1,893.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.18 : 4,815.90 = 1,262.40 : x
  2. Step 2: Convert to fraction form
    3,210.18/4,815.90 = 1,262.40/x
  3. Step 3: Cross multiply
    3,210.18x = 4,815.90 × 1,262.40
  4. Step 4: Simplify right side
    3,210.18x = 6,079,592.16
  5. Step 5: Solve for x
    x = 6,079,592.16/3,210.18
  6. Step 6: Final answer
    x = 1,893.85

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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.