Home / 5,090.04-7,638.57-2,491.56

Finding the Fourth Proportional to 5,090.04, 7,638.57 and 2,491.56

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Solution

The fourth proportional to 5,090.04, 7,638.57 and 2,491.56 is: 3,739.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.04 : 7,638.57 = 2,491.56 : x
  2. Step 2: Convert to fraction form
    5,090.04/7,638.57 = 2,491.56/x
  3. Step 3: Cross multiply
    5,090.04x = 7,638.57 × 2,491.56
  4. Step 4: Simplify right side
    5,090.04x = 19,031,955.47
  5. Step 5: Solve for x
    x = 19,031,955.47/5,090.04
  6. Step 6: Final answer
    x = 3,739.06

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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.