Home / 3,136.40-4,328.04-1,719.80

Finding the Fourth Proportional to 3,136.40, 4,328.04 and 1,719.80

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Solution

The fourth proportional to 3,136.40, 4,328.04 and 1,719.80 is: 2,373.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.40 : 4,328.04 = 1,719.80 : x
  2. Step 2: Convert to fraction form
    3,136.40/4,328.04 = 1,719.80/x
  3. Step 3: Cross multiply
    3,136.40x = 4,328.04 × 1,719.80
  4. Step 4: Simplify right side
    3,136.40x = 7,443,363.19
  5. Step 5: Solve for x
    x = 7,443,363.19/3,136.40
  6. Step 6: Final answer
    x = 2,373.22

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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.