Home / 3,660.48-5,491.62-1,812.47

Finding the Fourth Proportional to 3,660.48, 5,491.62 and 1,812.47

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Solution

The fourth proportional to 3,660.48, 5,491.62 and 1,812.47 is: 2,719.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.48 : 5,491.62 = 1,812.47 : x
  2. Step 2: Convert to fraction form
    3,660.48/5,491.62 = 1,812.47/x
  3. Step 3: Cross multiply
    3,660.48x = 5,491.62 × 1,812.47
  4. Step 4: Simplify right side
    3,660.48x = 9,953,369.04
  5. Step 5: Solve for x
    x = 9,953,369.04/3,660.48
  6. Step 6: Final answer
    x = 2,719.14

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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.