Home / 4,278.26-6,417.61-1,356.79

Finding the Fourth Proportional to 4,278.26, 6,417.61 and 1,356.79

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Solution

The fourth proportional to 4,278.26, 6,417.61 and 1,356.79 is: 2,035.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.26 : 6,417.61 = 1,356.79 : x
  2. Step 2: Convert to fraction form
    4,278.26/6,417.61 = 1,356.79/x
  3. Step 3: Cross multiply
    4,278.26x = 6,417.61 × 1,356.79
  4. Step 4: Simplify right side
    4,278.26x = 8,707,329.64
  5. Step 5: Solve for x
    x = 8,707,329.64/4,278.26
  6. Step 6: Final answer
    x = 2,035.25

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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.