Home / 3,098.11-4,275.43-1,681.81

Finding the Fourth Proportional to 3,098.11, 4,275.43 and 1,681.81

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Solution

The fourth proportional to 3,098.11, 4,275.43 and 1,681.81 is: 2,320.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.11 : 4,275.43 = 1,681.81 : x
  2. Step 2: Convert to fraction form
    3,098.11/4,275.43 = 1,681.81/x
  3. Step 3: Cross multiply
    3,098.11x = 4,275.43 × 1,681.81
  4. Step 4: Simplify right side
    3,098.11x = 7,190,466.08
  5. Step 5: Solve for x
    x = 7,190,466.08/3,098.11
  6. Step 6: Final answer
    x = 2,320.92

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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.