Home / 3,090.42-4,264.58-1,911.26

Finding the Fourth Proportional to 3,090.42, 4,264.58 and 1,911.26

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Solution

The fourth proportional to 3,090.42, 4,264.58 and 1,911.26 is: 2,637.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.42 : 4,264.58 = 1,911.26 : x
  2. Step 2: Convert to fraction form
    3,090.42/4,264.58 = 1,911.26/x
  3. Step 3: Cross multiply
    3,090.42x = 4,264.58 × 1,911.26
  4. Step 4: Simplify right side
    3,090.42x = 8,150,690.29
  5. Step 5: Solve for x
    x = 8,150,690.29/3,090.42
  6. Step 6: Final answer
    x = 2,637.41

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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.