Home / 4,278.96-6,417.32-1,812.51

Finding the Fourth Proportional to 4,278.96, 6,417.32 and 1,812.51

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Solution

The fourth proportional to 4,278.96, 6,417.32 and 1,812.51 is: 2,718.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.96 : 6,417.32 = 1,812.51 : x
  2. Step 2: Convert to fraction form
    4,278.96/6,417.32 = 1,812.51/x
  3. Step 3: Cross multiply
    4,278.96x = 6,417.32 × 1,812.51
  4. Step 4: Simplify right side
    4,278.96x = 11,631,456.67
  5. Step 5: Solve for x
    x = 11,631,456.67/4,278.96
  6. Step 6: Final answer
    x = 2,718.29

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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.