Home / 2,681.68-4,022.76-1,038.48

Finding the Fourth Proportional to 2,681.68, 4,022.76 and 1,038.48

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Solution

The fourth proportional to 2,681.68, 4,022.76 and 1,038.48 is: 1,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.68 : 4,022.76 = 1,038.48 : x
  2. Step 2: Convert to fraction form
    2,681.68/4,022.76 = 1,038.48/x
  3. Step 3: Cross multiply
    2,681.68x = 4,022.76 × 1,038.48
  4. Step 4: Simplify right side
    2,681.68x = 4,177,555.80
  5. Step 5: Solve for x
    x = 4,177,555.80/2,681.68
  6. Step 6: Final answer
    x = 1,557.81

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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.