Home / 3,136.31-4,328.21-1,810.07

Finding the Fourth Proportional to 3,136.31, 4,328.21 and 1,810.07

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Solution

The fourth proportional to 3,136.31, 4,328.21 and 1,810.07 is: 2,497.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.31 : 4,328.21 = 1,810.07 : x
  2. Step 2: Convert to fraction form
    3,136.31/4,328.21 = 1,810.07/x
  3. Step 3: Cross multiply
    3,136.31x = 4,328.21 × 1,810.07
  4. Step 4: Simplify right side
    3,136.31x = 7,834,363.07
  5. Step 5: Solve for x
    x = 7,834,363.07/3,136.31
  6. Step 6: Final answer
    x = 2,497.96

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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.