Home / 3,136.74-4,329.05-2,002.45

Finding the Fourth Proportional to 3,136.74, 4,329.05 and 2,002.45

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Solution

The fourth proportional to 3,136.74, 4,329.05 and 2,002.45 is: 2,763.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.74 : 4,329.05 = 2,002.45 : x
  2. Step 2: Convert to fraction form
    3,136.74/4,329.05 = 2,002.45/x
  3. Step 3: Cross multiply
    3,136.74x = 4,329.05 × 2,002.45
  4. Step 4: Simplify right side
    3,136.74x = 8,668,674.52
  5. Step 5: Solve for x
    x = 8,668,674.52/3,136.74
  6. Step 6: Final answer
    x = 2,763.59

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1.5x scale

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.