Home / 4,278.47-6,417.89-1,356.71

Finding the Fourth Proportional to 4,278.47, 6,417.89 and 1,356.71

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Solution

The fourth proportional to 4,278.47, 6,417.89 and 1,356.71 is: 2,035.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.47 : 6,417.89 = 1,356.71 : x
  2. Step 2: Convert to fraction form
    4,278.47/6,417.89 = 1,356.71/x
  3. Step 3: Cross multiply
    4,278.47x = 6,417.89 × 1,356.71
  4. Step 4: Simplify right side
    4,278.47x = 8,707,215.54
  5. Step 5: Solve for x
    x = 8,707,215.54/4,278.47
  6. Step 6: Final answer
    x = 2,035.12

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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.