Home / 2,681.10-4,021.02-949.71

Finding the Fourth Proportional to 2,681.10, 4,021.02 and 949.71

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Solution

The fourth proportional to 2,681.10, 4,021.02 and 949.71 is: 1,424.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.10 : 4,021.02 = 949.71 : x
  2. Step 2: Convert to fraction form
    2,681.10/4,021.02 = 949.71/x
  3. Step 3: Cross multiply
    2,681.10x = 4,021.02 × 949.71
  4. Step 4: Simplify right side
    2,681.10x = 3,818,802.90
  5. Step 5: Solve for x
    x = 3,818,802.90/2,681.10
  6. Step 6: Final answer
    x = 1,424.34

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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.