Home / 5,090.48-7,632.12-2,491.76

Finding the Fourth Proportional to 5,090.48, 7,632.12 and 2,491.76

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Solution

The fourth proportional to 5,090.48, 7,632.12 and 2,491.76 is: 3,735.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.48 : 7,632.12 = 2,491.76 : x
  2. Step 2: Convert to fraction form
    5,090.48/7,632.12 = 2,491.76/x
  3. Step 3: Cross multiply
    5,090.48x = 7,632.12 × 2,491.76
  4. Step 4: Simplify right side
    5,090.48x = 19,017,411.33
  5. Step 5: Solve for x
    x = 19,017,411.33/5,090.48
  6. Step 6: Final answer
    x = 3,735.88

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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.