Home / 3,136.07-4,327.98-1,809.74

Finding the Fourth Proportional to 3,136.07, 4,327.98 and 1,809.74

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Solution

The fourth proportional to 3,136.07, 4,327.98 and 1,809.74 is: 2,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.07 : 4,327.98 = 1,809.74 : x
  2. Step 2: Convert to fraction form
    3,136.07/4,327.98 = 1,809.74/x
  3. Step 3: Cross multiply
    3,136.07x = 4,327.98 × 1,809.74
  4. Step 4: Simplify right side
    3,136.07x = 7,832,532.74
  5. Step 5: Solve for x
    x = 7,832,532.74/3,136.07
  6. Step 6: Final answer
    x = 2,497.57

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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.