Home / 3,136.58-4,328.36-1,878.34

Finding the Fourth Proportional to 3,136.58, 4,328.36 and 1,878.34

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Solution

The fourth proportional to 3,136.58, 4,328.36 and 1,878.34 is: 2,592.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.58 : 4,328.36 = 1,878.34 : x
  2. Step 2: Convert to fraction form
    3,136.58/4,328.36 = 1,878.34/x
  3. Step 3: Cross multiply
    3,136.58x = 4,328.36 × 1,878.34
  4. Step 4: Simplify right side
    3,136.58x = 8,130,100.69
  5. Step 5: Solve for x
    x = 8,130,100.69/3,136.58
  6. Step 6: Final answer
    x = 2,592.03

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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.