Home / 2,090.30-3,136.53-1,116.70

Finding the Fourth Proportional to 2,090.30, 3,136.53 and 1,116.70

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Solution

The fourth proportional to 2,090.30, 3,136.53 and 1,116.70 is: 1,675.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.30 : 3,136.53 = 1,116.70 : x
  2. Step 2: Convert to fraction form
    2,090.30/3,136.53 = 1,116.70/x
  3. Step 3: Cross multiply
    2,090.30x = 3,136.53 × 1,116.70
  4. Step 4: Simplify right side
    2,090.30x = 3,502,563.05
  5. Step 5: Solve for x
    x = 3,502,563.05/2,090.30
  6. Step 6: Final answer
    x = 1,675.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.