Home / 3,360.81-4,637.89-1,868.68

Finding the Fourth Proportional to 3,360.81, 4,637.89 and 1,868.68

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Solution

The fourth proportional to 3,360.81, 4,637.89 and 1,868.68 is: 2,578.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.81 : 4,637.89 = 1,868.68 : x
  2. Step 2: Convert to fraction form
    3,360.81/4,637.89 = 1,868.68/x
  3. Step 3: Cross multiply
    3,360.81x = 4,637.89 × 1,868.68
  4. Step 4: Simplify right side
    3,360.81x = 8,666,732.29
  5. Step 5: Solve for x
    x = 8,666,732.29/3,360.81
  6. Step 6: Final answer
    x = 2,578.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.