Home / 3,090.44-4,637.76-1,142.72

Finding the Fourth Proportional to 3,090.44, 4,637.76 and 1,142.72

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Solution

The fourth proportional to 3,090.44, 4,637.76 and 1,142.72 is: 1,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.44 : 4,637.76 = 1,142.72 : x
  2. Step 2: Convert to fraction form
    3,090.44/4,637.76 = 1,142.72/x
  3. Step 3: Cross multiply
    3,090.44x = 4,637.76 × 1,142.72
  4. Step 4: Simplify right side
    3,090.44x = 5,299,661.11
  5. Step 5: Solve for x
    x = 5,299,661.11/3,090.44
  6. Step 6: Final answer
    x = 1,714.86

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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.