Home / 2,678.87-4,018.61-2,403.27

Finding the Fourth Proportional to 2,678.87, 4,018.61 and 2,403.27

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Solution

The fourth proportional to 2,678.87, 4,018.61 and 2,403.27 is: 3,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.87 : 4,018.61 = 2,403.27 : x
  2. Step 2: Convert to fraction form
    2,678.87/4,018.61 = 2,403.27/x
  3. Step 3: Cross multiply
    2,678.87x = 4,018.61 × 2,403.27
  4. Step 4: Simplify right side
    2,678.87x = 9,657,810.86
  5. Step 5: Solve for x
    x = 9,657,810.86/2,678.87
  6. Step 6: Final answer
    x = 3,605.18

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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.