Home / 2,090.26-3,130.40-1,163.52

Finding the Fourth Proportional to 2,090.26, 3,130.40 and 1,163.52

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Solution

The fourth proportional to 2,090.26, 3,130.40 and 1,163.52 is: 1,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.26 : 3,130.40 = 1,163.52 : x
  2. Step 2: Convert to fraction form
    2,090.26/3,130.40 = 1,163.52/x
  3. Step 3: Cross multiply
    2,090.26x = 3,130.40 × 1,163.52
  4. Step 4: Simplify right side
    2,090.26x = 3,642,283.01
  5. Step 5: Solve for x
    x = 3,642,283.01/2,090.26
  6. Step 6: Final answer
    x = 1,742.50

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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.